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Finding the Fourth Proportional to 357,078.60, 534,581.10 and 346,710.60

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Solution

The fourth proportional to 357,078.60, 534,581.10 and 346,710.60 is: 519,059.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,078.60 : 534,581.10 = 346,710.60 : x
  2. Step 2: Convert to fraction form
    357,078.60/534,581.10 = 346,710.60/x
  3. Step 3: Cross multiply
    357,078.60x = 534,581.10 × 346,710.60
  4. Step 4: Simplify right side
    357,078.60x = 185,344,933,929.66
  5. Step 5: Solve for x
    x = 185,344,933,929.66/357,078.60
  6. Step 6: Final answer
    x = 519,059.20

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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.