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Finding the Fourth Proportional to 283,574.08, 391,349.70 and 156,249.64

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Solution

The fourth proportional to 283,574.08, 391,349.70 and 156,249.64 is: 215,634.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,574.08 : 391,349.70 = 156,249.64 : x
  2. Step 2: Convert to fraction form
    283,574.08/391,349.70 = 156,249.64/x
  3. Step 3: Cross multiply
    283,574.08x = 391,349.70 × 156,249.64
  4. Step 4: Simplify right side
    283,574.08x = 61,148,249,739.11
  5. Step 5: Solve for x
    x = 61,148,249,739.11/283,574.08
  6. Step 6: Final answer
    x = 215,634.13

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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.