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Finding the Fourth Proportional to 590,964.70, 886,447.05 and 402,007.90

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Solution

The fourth proportional to 590,964.70, 886,447.05 and 402,007.90 is: 603,011.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    590,964.70 : 886,447.05 = 402,007.90 : x
  2. Step 2: Convert to fraction form
    590,964.70/886,447.05 = 402,007.90/x
  3. Step 3: Cross multiply
    590,964.70x = 886,447.05 × 402,007.90
  4. Step 4: Simplify right side
    590,964.70x = 356,358,717,031.70
  5. Step 5: Solve for x
    x = 356,358,717,031.70/590,964.70
  6. Step 6: Final answer
    x = 603,011.85

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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.