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Finding the Fourth Proportional to 649,363.20, 974,044.80 and 176,047.80

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Solution

The fourth proportional to 649,363.20, 974,044.80 and 176,047.80 is: 264,071.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,363.20 : 974,044.80 = 176,047.80 : x
  2. Step 2: Convert to fraction form
    649,363.20/974,044.80 = 176,047.80/x
  3. Step 3: Cross multiply
    649,363.20x = 974,044.80 × 176,047.80
  4. Step 4: Simplify right side
    649,363.20x = 171,478,444,141.44
  5. Step 5: Solve for x
    x = 171,478,444,141.44/649,363.20
  6. Step 6: Final answer
    x = 264,071.70

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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.