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Finding the Fourth Proportional to 488,748.60, 732,466.80 and 348,343.20

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Solution

The fourth proportional to 488,748.60, 732,466.80 and 348,343.20 is: 522,047.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,748.60 : 732,466.80 = 348,343.20 : x
  2. Step 2: Convert to fraction form
    488,748.60/732,466.80 = 348,343.20/x
  3. Step 3: Cross multiply
    488,748.60x = 732,466.80 × 348,343.20
  4. Step 4: Simplify right side
    488,748.60x = 255,149,829,005.76
  5. Step 5: Solve for x
    x = 255,149,829,005.76/488,748.60
  6. Step 6: Final answer
    x = 522,047.18

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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.