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Finding the Fourth Proportional to 560,411.70, 840,617.55 and 186,434.70

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Solution

The fourth proportional to 560,411.70, 840,617.55 and 186,434.70 is: 279,652.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,411.70 : 840,617.55 = 186,434.70 : x
  2. Step 2: Convert to fraction form
    560,411.70/840,617.55 = 186,434.70/x
  3. Step 3: Cross multiply
    560,411.70x = 840,617.55 × 186,434.70
  4. Step 4: Simplify right side
    560,411.70x = 156,720,280,748.99
  5. Step 5: Solve for x
    x = 156,720,280,748.99/560,411.70
  6. Step 6: Final answer
    x = 279,652.05

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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.