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Finding the Fourth Proportional to 577,028.72, 865,434.36 and 156,249.20

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Solution

The fourth proportional to 577,028.72, 865,434.36 and 156,249.20 is: 234,344.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,028.72 : 865,434.36 = 156,249.20 : x
  2. Step 2: Convert to fraction form
    577,028.72/865,434.36 = 156,249.20/x
  3. Step 3: Cross multiply
    577,028.72x = 865,434.36 × 156,249.20
  4. Step 4: Simplify right side
    577,028.72x = 135,223,426,402.51
  5. Step 5: Solve for x
    x = 135,223,426,402.51/577,028.72
  6. Step 6: Final answer
    x = 234,344.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.