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Finding the Fourth Proportional to 704,985.60, 972,881.38 and 382,695.92

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Solution

The fourth proportional to 704,985.60, 972,881.38 and 382,695.92 is: 528,121.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    704,985.60 : 972,881.38 = 382,695.92 : x
  2. Step 2: Convert to fraction form
    704,985.60/972,881.38 = 382,695.92/x
  3. Step 3: Cross multiply
    704,985.60x = 972,881.38 × 382,695.92
  4. Step 4: Simplify right side
    704,985.60x = 372,317,734,769.97
  5. Step 5: Solve for x
    x = 372,317,734,769.97/704,985.60
  6. Step 6: Final answer
    x = 528,121.05

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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.