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Finding the Fourth Proportional to 434,543.70, 651,815.55 and 119,000.10

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Solution

The fourth proportional to 434,543.70, 651,815.55 and 119,000.10 is: 178,500.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,543.70 : 651,815.55 = 119,000.10 : x
  2. Step 2: Convert to fraction form
    434,543.70/651,815.55 = 119,000.10/x
  3. Step 3: Cross multiply
    434,543.70x = 651,815.55 × 119,000.10
  4. Step 4: Simplify right side
    434,543.70x = 77,566,115,631.56
  5. Step 5: Solve for x
    x = 77,566,115,631.56/434,543.70
  6. Step 6: Final answer
    x = 178,500.15

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Double scale
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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.