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Finding the Fourth Proportional to 343,248.20, 514,872.30 and 156,624.20

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Solution

The fourth proportional to 343,248.20, 514,872.30 and 156,624.20 is: 234,936.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,248.20 : 514,872.30 = 156,624.20 : x
  2. Step 2: Convert to fraction form
    343,248.20/514,872.30 = 156,624.20/x
  3. Step 3: Cross multiply
    343,248.20x = 514,872.30 × 156,624.20
  4. Step 4: Simplify right side
    343,248.20x = 80,641,462,089.66
  5. Step 5: Solve for x
    x = 80,641,462,089.66/343,248.20
  6. Step 6: Final answer
    x = 234,936.30

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Half scale
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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.