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Finding the Fourth Proportional to 453,616.77, 625,730.43 and 283,555.65

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Solution

The fourth proportional to 453,616.77, 625,730.43 and 283,555.65 is: 391,143.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,616.77 : 625,730.43 = 283,555.65 : x
  2. Step 2: Convert to fraction form
    453,616.77/625,730.43 = 283,555.65/x
  3. Step 3: Cross multiply
    453,616.77x = 625,730.43 × 283,555.65
  4. Step 4: Simplify right side
    453,616.77x = 177,429,398,803.43
  5. Step 5: Solve for x
    x = 177,429,398,803.43/453,616.77
  6. Step 6: Final answer
    x = 391,143.83

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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.