Home / 399,174,543.60-598,761,815.40-393,799,772.40

Finding the Fourth Proportional to 399,174,543.60, 598,761,815.40 and 393,799,772.40

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Solution

The fourth proportional to 399,174,543.60, 598,761,815.40 and 393,799,772.40 is: 590,699,658.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,174,543.60 : 598,761,815.40 = 393,799,772.40 : x
  2. Step 2: Convert to fraction form
    399,174,543.60/598,761,815.40 = 393,799,772.40/x
  3. Step 3: Cross multiply
    399,174,543.60x = 598,761,815.40 × 393,799,772.40
  4. Step 4: Simplify right side
    399,174,543.60x = 235,792,266,626,330,784
  5. Step 5: Solve for x
    x = 235,792,266,626,330,784/399,174,543.60
  6. Step 6: Final answer
    x = 590,699,658.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.