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Finding the Fourth Proportional to 582,446.10, 873,669.15 and 345,666.90

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Solution

The fourth proportional to 582,446.10, 873,669.15 and 345,666.90 is: 518,500.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    582,446.10 : 873,669.15 = 345,666.90 : x
  2. Step 2: Convert to fraction form
    582,446.10/873,669.15 = 345,666.90/x
  3. Step 3: Cross multiply
    582,446.10x = 873,669.15 × 345,666.90
  4. Step 4: Simplify right side
    582,446.10x = 301,998,506,706.14
  5. Step 5: Solve for x
    x = 301,998,506,706.14/582,446.10
  6. Step 6: Final answer
    x = 518,500.35

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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.