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Finding the Fourth Proportional to 484,630.40, 727,091.40 and 260,098.40

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Solution

The fourth proportional to 484,630.40, 727,091.40 and 260,098.40 is: 390,225.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,630.40 : 727,091.40 = 260,098.40 : x
  2. Step 2: Convert to fraction form
    484,630.40/727,091.40 = 260,098.40/x
  3. Step 3: Cross multiply
    484,630.40x = 727,091.40 × 260,098.40
  4. Step 4: Simplify right side
    484,630.40x = 189,115,309,793.76
  5. Step 5: Solve for x
    x = 189,115,309,793.76/484,630.40
  6. Step 6: Final answer
    x = 390,225.85

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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.