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Finding the Fourth Proportional to 604,466,565.60, 908,715,387.60 and 515,782,840.80

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Solution

The fourth proportional to 604,466,565.60, 908,715,387.60 and 515,782,840.80 is: 775,394,092.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    604,466,565.60 : 908,715,387.60 = 515,782,840.80 : x
  2. Step 2: Convert to fraction form
    604,466,565.60/908,715,387.60 = 515,782,840.80/x
  3. Step 3: Cross multiply
    604,466,565.60x = 908,715,387.60 × 515,782,840.80
  4. Step 4: Simplify right side
    604,466,565.60x = 468,699,804,095,001,088
  5. Step 5: Solve for x
    x = 468,699,804,095,001,088/604,466,565.60
  6. Step 6: Final answer
    x = 775,394,092.52

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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.