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Finding the Fourth Proportional to 626,064.24, 864,105.12 and 384,473.76

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Solution

The fourth proportional to 626,064.24, 864,105.12 and 384,473.76 is: 530,657.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,064.24 : 864,105.12 = 384,473.76 : x
  2. Step 2: Convert to fraction form
    626,064.24/864,105.12 = 384,473.76/x
  3. Step 3: Cross multiply
    626,064.24x = 864,105.12 × 384,473.76
  4. Step 4: Simplify right side
    626,064.24x = 332,225,744,521.65
  5. Step 5: Solve for x
    x = 332,225,744,521.65/626,064.24
  6. Step 6: Final answer
    x = 530,657.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.