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Finding the Fourth Proportional to 357,609.60, 536,414.40 and 191,721.60

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Solution

The fourth proportional to 357,609.60, 536,414.40 and 191,721.60 is: 287,582.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,609.60 : 536,414.40 = 191,721.60 : x
  2. Step 2: Convert to fraction form
    357,609.60/536,414.40 = 191,721.60/x
  3. Step 3: Cross multiply
    357,609.60x = 536,414.40 × 191,721.60
  4. Step 4: Simplify right side
    357,609.60x = 102,842,227,031.04
  5. Step 5: Solve for x
    x = 102,842,227,031.04/357,609.60
  6. Step 6: Final answer
    x = 287,582.40

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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.