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Finding the Fourth Proportional to 584,428.70, 876,643.05 and 560,809.10

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Solution

The fourth proportional to 584,428.70, 876,643.05 and 560,809.10 is: 841,213.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    584,428.70 : 876,643.05 = 560,809.10 : x
  2. Step 2: Convert to fraction form
    584,428.70/876,643.05 = 560,809.10/x
  3. Step 3: Cross multiply
    584,428.70x = 876,643.05 × 560,809.10
  4. Step 4: Simplify right side
    584,428.70x = 491,629,399,891.76
  5. Step 5: Solve for x
    x = 491,629,399,891.76/584,428.70
  6. Step 6: Final answer
    x = 841,213.65

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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.