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Finding the Fourth Proportional to 488,559.10, 732,838.65 and 404,578.30

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Solution

The fourth proportional to 488,559.10, 732,838.65 and 404,578.30 is: 606,867.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,559.10 : 732,838.65 = 404,578.30 : x
  2. Step 2: Convert to fraction form
    488,559.10/732,838.65 = 404,578.30/x
  3. Step 3: Cross multiply
    488,559.10x = 732,838.65 × 404,578.30
  4. Step 4: Simplify right side
    488,559.10x = 296,490,615,191.30
  5. Step 5: Solve for x
    x = 296,490,615,191.30/488,559.10
  6. Step 6: Final answer
    x = 606,867.45

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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.