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Finding the Fourth Proportional to 539,187.80, 808,781.70 and 535,688.60

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Solution

The fourth proportional to 539,187.80, 808,781.70 and 535,688.60 is: 803,532.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,187.80 : 808,781.70 = 535,688.60 : x
  2. Step 2: Convert to fraction form
    539,187.80/808,781.70 = 535,688.60/x
  3. Step 3: Cross multiply
    539,187.80x = 808,781.70 × 535,688.60
  4. Step 4: Simplify right side
    539,187.80x = 433,255,136,578.62
  5. Step 5: Solve for x
    x = 433,255,136,578.62/539,187.80
  6. Step 6: Final answer
    x = 803,532.90

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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.