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Finding the Fourth Proportional to 488,463.70, 732,695.55 and 329,031.40

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Solution

The fourth proportional to 488,463.70, 732,695.55 and 329,031.40 is: 493,547.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,463.70 : 732,695.55 = 329,031.40 : x
  2. Step 2: Convert to fraction form
    488,463.70/732,695.55 = 329,031.40/x
  3. Step 3: Cross multiply
    488,463.70x = 732,695.55 × 329,031.40
  4. Step 4: Simplify right side
    488,463.70x = 241,079,842,590.27
  5. Step 5: Solve for x
    x = 241,079,842,590.27/488,463.70
  6. Step 6: Final answer
    x = 493,547.10

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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.