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Finding the Fourth Proportional to 559,411.70, 839,117.55 and 185,434.70

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Solution

The fourth proportional to 559,411.70, 839,117.55 and 185,434.70 is: 278,152.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,411.70 : 839,117.55 = 185,434.70 : x
  2. Step 2: Convert to fraction form
    559,411.70/839,117.55 = 185,434.70/x
  3. Step 3: Cross multiply
    559,411.70x = 839,117.55 × 185,434.70
  4. Step 4: Simplify right side
    559,411.70x = 155,601,511,148.99
  5. Step 5: Solve for x
    x = 155,601,511,148.99/559,411.70
  6. Step 6: Final answer
    x = 278,152.05

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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.