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Finding the Fourth Proportional to 532,172.88, 735,009.56 and 387,622.72

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Solution

The fourth proportional to 532,172.88, 735,009.56 and 387,622.72 is: 535,364.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    532,172.88 : 735,009.56 = 387,622.72 : x
  2. Step 2: Convert to fraction form
    532,172.88/735,009.56 = 387,622.72/x
  3. Step 3: Cross multiply
    532,172.88x = 735,009.56 × 387,622.72
  4. Step 4: Simplify right side
    532,172.88x = 284,906,404,873.20
  5. Step 5: Solve for x
    x = 284,906,404,873.20/532,172.88
  6. Step 6: Final answer
    x = 535,364.38

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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.