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Finding the Fourth Proportional to 477,946.20, 716,919.30 and 454,618.20

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Solution

The fourth proportional to 477,946.20, 716,919.30 and 454,618.20 is: 681,927.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    477,946.20 : 716,919.30 = 454,618.20 : x
  2. Step 2: Convert to fraction form
    477,946.20/716,919.30 = 454,618.20/x
  3. Step 3: Cross multiply
    477,946.20x = 716,919.30 × 454,618.20
  4. Step 4: Simplify right side
    477,946.20x = 325,924,561,711.26
  5. Step 5: Solve for x
    x = 325,924,561,711.26/477,946.20
  6. Step 6: Final answer
    x = 681,927.30

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.