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Finding the Fourth Proportional to 624,000.35, 936,000.53 and 413,875.55

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Solution

The fourth proportional to 624,000.35, 936,000.53 and 413,875.55 is: 620,813.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,000.35 : 936,000.53 = 413,875.55 : x
  2. Step 2: Convert to fraction form
    624,000.35/936,000.53 = 413,875.55/x
  3. Step 3: Cross multiply
    624,000.35x = 936,000.53 × 413,875.55
  4. Step 4: Simplify right side
    624,000.35x = 387,387,732,084.66
  5. Step 5: Solve for x
    x = 387,387,732,084.66/624,000.35
  6. Step 6: Final answer
    x = 620,813.33

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Similar ratio
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1.5x scale

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.