Home / 516,278.52-712,566.36-329,890.85

Finding the Fourth Proportional to 516,278.52, 712,566.36 and 329,890.85

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Solution

The fourth proportional to 516,278.52, 712,566.36 and 329,890.85 is: 455,314.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,278.52 : 712,566.36 = 329,890.85 : x
  2. Step 2: Convert to fraction form
    516,278.52/712,566.36 = 329,890.85/x
  3. Step 3: Cross multiply
    516,278.52x = 712,566.36 × 329,890.85
  4. Step 4: Simplify right side
    516,278.52x = 235,069,118,618.97
  5. Step 5: Solve for x
    x = 235,069,118,618.97/516,278.52
  6. Step 6: Final answer
    x = 455,314.54

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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.