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Finding the Fourth Proportional to 584,960.40, 876,128.40 and 479,984.40

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Solution

The fourth proportional to 584,960.40, 876,128.40 and 479,984.40 is: 718,899.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    584,960.40 : 876,128.40 = 479,984.40 : x
  2. Step 2: Convert to fraction form
    584,960.40/876,128.40 = 479,984.40/x
  3. Step 3: Cross multiply
    584,960.40x = 876,128.40 × 479,984.40
  4. Step 4: Simplify right side
    584,960.40x = 420,527,964,396.96
  5. Step 5: Solve for x
    x = 420,527,964,396.96/584,960.40
  6. Step 6: Final answer
    x = 718,899.89

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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.