Home / 656,400,373.53-905,835,225.94-354,985,678.54

Finding the Fourth Proportional to 656,400,373.53, 905,835,225.94 and 354,985,678.54

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Solution

The fourth proportional to 656,400,373.53, 905,835,225.94 and 354,985,678.54 is: 489,881,702.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,400,373.53 : 905,835,225.94 = 354,985,678.54 : x
  2. Step 2: Convert to fraction form
    656,400,373.53/905,835,225.94 = 354,985,678.54/x
  3. Step 3: Cross multiply
    656,400,373.53x = 905,835,225.94 × 354,985,678.54
  4. Step 4: Simplify right side
    656,400,373.53x = 321,558,532,320,890,048
  5. Step 5: Solve for x
    x = 321,558,532,320,890,048/656,400,373.53
  6. Step 6: Final answer
    x = 489,881,702.22

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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.