Home / 558,421.60-836,644.20-539,921.20

Finding the Fourth Proportional to 558,421.60, 836,644.20 and 539,921.20

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Solution

The fourth proportional to 558,421.60, 836,644.20 and 539,921.20 is: 808,926.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,421.60 : 836,644.20 = 539,921.20 : x
  2. Step 2: Convert to fraction form
    558,421.60/836,644.20 = 539,921.20/x
  3. Step 3: Cross multiply
    558,421.60x = 836,644.20 × 539,921.20
  4. Step 4: Simplify right side
    558,421.60x = 451,721,940,437.04
  5. Step 5: Solve for x
    x = 451,721,940,437.04/558,421.60
  6. Step 6: Final answer
    x = 808,926.34

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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.