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Finding the Fourth Proportional to 626,909.26, 865,355.52 and 372,258.64

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Solution

The fourth proportional to 626,909.26, 865,355.52 and 372,258.64 is: 513,848.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,909.26 : 865,355.52 = 372,258.64 : x
  2. Step 2: Convert to fraction form
    626,909.26/865,355.52 = 372,258.64/x
  3. Step 3: Cross multiply
    626,909.26x = 865,355.52 × 372,258.64
  4. Step 4: Simplify right side
    626,909.26x = 322,136,068,991.69
  5. Step 5: Solve for x
    x = 322,136,068,991.69/626,909.26
  6. Step 6: Final answer
    x = 513,848.00

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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.