Home / 475,731.40-712,992.30-194,931.40

Finding the Fourth Proportional to 475,731.40, 712,992.30 and 194,931.40

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Solution

The fourth proportional to 475,731.40, 712,992.30 and 194,931.40 is: 292,149.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,731.40 : 712,992.30 = 194,931.40 : x
  2. Step 2: Convert to fraction form
    475,731.40/712,992.30 = 194,931.40/x
  3. Step 3: Cross multiply
    475,731.40x = 712,992.30 × 194,931.40
  4. Step 4: Simplify right side
    475,731.40x = 138,984,587,228.22
  5. Step 5: Solve for x
    x = 138,984,587,228.22/475,731.40
  6. Step 6: Final answer
    x = 292,149.28

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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.