Home / 1,018,195.49-1,405,071.28-565,515.65

Finding the Fourth Proportional to 1,018,195.49, 1,405,071.28 and 565,515.65

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Solution

The fourth proportional to 1,018,195.49, 1,405,071.28 and 565,515.65 is: 780,390.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,018,195.49 : 1,405,071.28 = 565,515.65 : x
  2. Step 2: Convert to fraction form
    1,018,195.49/1,405,071.28 = 565,515.65/x
  3. Step 3: Cross multiply
    1,018,195.49x = 1,405,071.28 × 565,515.65
  4. Step 4: Simplify right side
    1,018,195.49x = 794,589,798,205.53
  5. Step 5: Solve for x
    x = 794,589,798,205.53/1,018,195.49
  6. Step 6: Final answer
    x = 780,390.22

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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.