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Finding the Fourth Proportional to 574,417.28, 792,701.75 and 316,318.25

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Solution

The fourth proportional to 574,417.28, 792,701.75 and 316,318.25 is: 436,522.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,417.28 : 792,701.75 = 316,318.25 : x
  2. Step 2: Convert to fraction form
    574,417.28/792,701.75 = 316,318.25/x
  3. Step 3: Cross multiply
    574,417.28x = 792,701.75 × 316,318.25
  4. Step 4: Simplify right side
    574,417.28x = 250,746,030,331.94
  5. Step 5: Solve for x
    x = 250,746,030,331.94/574,417.28
  6. Step 6: Final answer
    x = 436,522.44

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Double scale
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Similar ratio
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1.5x scale

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.