Home / 862,076.40-1,189,810.20-499,726.92

Finding the Fourth Proportional to 862,076.40, 1,189,810.20 and 499,726.92

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Solution

The fourth proportional to 862,076.40, 1,189,810.20 and 499,726.92 is: 689,707.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    862,076.40 : 1,189,810.20 = 499,726.92 : x
  2. Step 2: Convert to fraction form
    862,076.40/1,189,810.20 = 499,726.92/x
  3. Step 3: Cross multiply
    862,076.40x = 1,189,810.20 × 499,726.92
  4. Step 4: Simplify right side
    862,076.40x = 594,580,186,630.58
  5. Step 5: Solve for x
    x = 594,580,186,630.58/862,076.40
  6. Step 6: Final answer
    x = 689,707.07

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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.