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Finding the Fourth Proportional to 693,158.12, 956,159.12 and 417,324.20

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Solution

The fourth proportional to 693,158.12, 956,159.12 and 417,324.20 is: 575,667.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,158.12 : 956,159.12 = 417,324.20 : x
  2. Step 2: Convert to fraction form
    693,158.12/956,159.12 = 417,324.20/x
  3. Step 3: Cross multiply
    693,158.12x = 956,159.12 × 417,324.20
  4. Step 4: Simplify right side
    693,158.12x = 399,028,339,826.70
  5. Step 5: Solve for x
    x = 399,028,339,826.70/693,158.12
  6. Step 6: Final answer
    x = 575,667.12

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Double scale
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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.