Home / 611,945.76-918,278.22-256,932.48

Finding the Fourth Proportional to 611,945.76, 918,278.22 and 256,932.48

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Solution

The fourth proportional to 611,945.76, 918,278.22 and 256,932.48 is: 385,549.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,945.76 : 918,278.22 = 256,932.48 : x
  2. Step 2: Convert to fraction form
    611,945.76/918,278.22 = 256,932.48/x
  3. Step 3: Cross multiply
    611,945.76x = 918,278.22 × 256,932.48
  4. Step 4: Simplify right side
    611,945.76x = 235,935,500,394.59
  5. Step 5: Solve for x
    x = 235,935,500,394.59/611,945.76
  6. Step 6: Final answer
    x = 385,549.69

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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.