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Finding the Fourth Proportional to 624,176.40, 936,264.60 and 579,939.60

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Solution

The fourth proportional to 624,176.40, 936,264.60 and 579,939.60 is: 869,909.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,176.40 : 936,264.60 = 579,939.60 : x
  2. Step 2: Convert to fraction form
    624,176.40/936,264.60 = 579,939.60/x
  3. Step 3: Cross multiply
    624,176.40x = 936,264.60 × 579,939.60
  4. Step 4: Simplify right side
    624,176.40x = 542,976,917,618.16
  5. Step 5: Solve for x
    x = 542,976,917,618.16/624,176.40
  6. Step 6: Final answer
    x = 869,909.40

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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.