Home / 911,127.60-1,366,691.40-612,529.20

Finding the Fourth Proportional to 911,127.60, 1,366,691.40 and 612,529.20

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Solution

The fourth proportional to 911,127.60, 1,366,691.40 and 612,529.20 is: 918,793.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    911,127.60 : 1,366,691.40 = 612,529.20 : x
  2. Step 2: Convert to fraction form
    911,127.60/1,366,691.40 = 612,529.20/x
  3. Step 3: Cross multiply
    911,127.60x = 1,366,691.40 × 612,529.20
  4. Step 4: Simplify right side
    911,127.60x = 837,138,389,888.88
  5. Step 5: Solve for x
    x = 837,138,389,888.88/911,127.60
  6. Step 6: Final answer
    x = 918,793.80

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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.