Home / 932,139.61-1,397,982.21-258,203.41

Finding the Fourth Proportional to 932,139.61, 1,397,982.21 and 258,203.41

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Solution

The fourth proportional to 932,139.61, 1,397,982.21 and 258,203.41 is: 387,242.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    932,139.61 : 1,397,982.21 = 258,203.41 : x
  2. Step 2: Convert to fraction form
    932,139.61/1,397,982.21 = 258,203.41/x
  3. Step 3: Cross multiply
    932,139.61x = 1,397,982.21 × 258,203.41
  4. Step 4: Simplify right side
    932,139.61x = 360,963,769,278.12
  5. Step 5: Solve for x
    x = 360,963,769,278.12/932,139.61
  6. Step 6: Final answer
    x = 387,242.18

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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.