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Finding the Fourth Proportional to 584,471.40, 876,715.74 and 163,720.68

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Solution

The fourth proportional to 584,471.40, 876,715.74 and 163,720.68 is: 245,583.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    584,471.40 : 876,715.74 = 163,720.68 : x
  2. Step 2: Convert to fraction form
    584,471.40/876,715.74 = 163,720.68/x
  3. Step 3: Cross multiply
    584,471.40x = 876,715.74 × 163,720.68
  4. Step 4: Simplify right side
    584,471.40x = 143,536,497,119.50
  5. Step 5: Solve for x
    x = 143,536,497,119.50/584,471.40
  6. Step 6: Final answer
    x = 245,583.44

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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.