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Finding the Fourth Proportional to 581,046.10, 871,569.15 and 206,934.10

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Solution

The fourth proportional to 581,046.10, 871,569.15 and 206,934.10 is: 310,401.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    581,046.10 : 871,569.15 = 206,934.10 : x
  2. Step 2: Convert to fraction form
    581,046.10/871,569.15 = 206,934.10/x
  3. Step 3: Cross multiply
    581,046.10x = 871,569.15 × 206,934.10
  4. Step 4: Simplify right side
    581,046.10x = 180,357,377,643.02
  5. Step 5: Solve for x
    x = 180,357,377,643.02/581,046.10
  6. Step 6: Final answer
    x = 310,401.15

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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.