Home / 842,686.47-1,162,816.16-498,535.29

Finding the Fourth Proportional to 842,686.47, 1,162,816.16 and 498,535.29

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Solution

The fourth proportional to 842,686.47, 1,162,816.16 and 498,535.29 is: 687,924.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    842,686.47 : 1,162,816.16 = 498,535.29 : x
  2. Step 2: Convert to fraction form
    842,686.47/1,162,816.16 = 498,535.29/x
  3. Step 3: Cross multiply
    842,686.47x = 1,162,816.16 × 498,535.29
  4. Step 4: Simplify right side
    842,686.47x = 579,704,889,049.61
  5. Step 5: Solve for x
    x = 579,704,889,049.61/842,686.47
  6. Step 6: Final answer
    x = 687,924.76

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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.