Home / 714,548.76-986,081.43-392,261.51

Finding the Fourth Proportional to 714,548.76, 986,081.43 and 392,261.51

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Solution

The fourth proportional to 714,548.76, 986,081.43 and 392,261.51 is: 541,323.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    714,548.76 : 986,081.43 = 392,261.51 : x
  2. Step 2: Convert to fraction form
    714,548.76/986,081.43 = 392,261.51/x
  3. Step 3: Cross multiply
    714,548.76x = 986,081.43 × 392,261.51
  4. Step 4: Simplify right side
    714,548.76x = 386,801,785,784.35
  5. Step 5: Solve for x
    x = 386,801,785,784.35/714,548.76
  6. Step 6: Final answer
    x = 541,323.15

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Double scale
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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.