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Finding the Fourth Proportional to 513,141.96, 708,114.99 and 283,684.65

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Solution

The fourth proportional to 513,141.96, 708,114.99 and 283,684.65 is: 391,473.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,141.96 : 708,114.99 = 283,684.65 : x
  2. Step 2: Convert to fraction form
    513,141.96/708,114.99 = 283,684.65/x
  3. Step 3: Cross multiply
    513,141.96x = 708,114.99 × 283,684.65
  4. Step 4: Simplify right side
    513,141.96x = 200,881,353,097.90
  5. Step 5: Solve for x
    x = 200,881,353,097.90/513,141.96
  6. Step 6: Final answer
    x = 391,473.25

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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.