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Finding the Fourth Proportional to 610,468.90, 915,703.35 and 451,036.60

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Solution

The fourth proportional to 610,468.90, 915,703.35 and 451,036.60 is: 676,554.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,468.90 : 915,703.35 = 451,036.60 : x
  2. Step 2: Convert to fraction form
    610,468.90/915,703.35 = 451,036.60/x
  3. Step 3: Cross multiply
    610,468.90x = 915,703.35 × 451,036.60
  4. Step 4: Simplify right side
    610,468.90x = 413,015,725,592.61
  5. Step 5: Solve for x
    x = 413,015,725,592.61/610,468.90
  6. Step 6: Final answer
    x = 676,554.90

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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.