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Finding the Fourth Proportional to 488,042.20, 732,063.30 and 346,324.60

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Solution

The fourth proportional to 488,042.20, 732,063.30 and 346,324.60 is: 519,486.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,042.20 : 732,063.30 = 346,324.60 : x
  2. Step 2: Convert to fraction form
    488,042.20/732,063.30 = 346,324.60/x
  3. Step 3: Cross multiply
    488,042.20x = 732,063.30 × 346,324.60
  4. Step 4: Simplify right side
    488,042.20x = 253,531,529,547.18
  5. Step 5: Solve for x
    x = 253,531,529,547.18/488,042.20
  6. Step 6: Final answer
    x = 519,486.90

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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.