Home / 698,156,670,786.93-963,479,977,824.71-405,158,908,710.74

Finding the Fourth Proportional to 698,156,670,786.93, 963,479,977,824.71 and 405,158,908,710.74

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Solution

The fourth proportional to 698,156,670,786.93, 963,479,977,824.71 and 405,158,908,710.74 is: 559,133,089,626.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    698,156,670,786.93 : 963,479,977,824.71 = 405,158,908,710.74 : x
  2. Step 2: Convert to fraction form
    698,156,670,786.93/963,479,977,824.71 = 405,158,908,710.74/x
  3. Step 3: Cross multiply
    698,156,670,786.93x = 963,479,977,824.71 × 405,158,908,710.74
  4. Step 4: Simplify right side
    698,156,670,786.93x = 390,362,496,380,107,428,462,592
  5. Step 5: Solve for x
    x = 390,362,496,380,107,428,462,592/698,156,670,786.93
  6. Step 6: Final answer
    x = 559,133,089,626.01

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Double scale
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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.