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Finding the Fourth Proportional to 624,124.80, 936,187.20 and 372,182.40

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Solution

The fourth proportional to 624,124.80, 936,187.20 and 372,182.40 is: 558,273.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,124.80 : 936,187.20 = 372,182.40 : x
  2. Step 2: Convert to fraction form
    624,124.80/936,187.20 = 372,182.40/x
  3. Step 3: Cross multiply
    624,124.80x = 936,187.20 × 372,182.40
  4. Step 4: Simplify right side
    624,124.80x = 348,432,398,945.28
  5. Step 5: Solve for x
    x = 348,432,398,945.28/624,124.80
  6. Step 6: Final answer
    x = 558,273.60

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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.