Home / 929,253.20-1,282,446.72-515,828.88

Finding the Fourth Proportional to 929,253.20, 1,282,446.72 and 515,828.88

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Solution

The fourth proportional to 929,253.20, 1,282,446.72 and 515,828.88 is: 711,886.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    929,253.20 : 1,282,446.72 = 515,828.88 : x
  2. Step 2: Convert to fraction form
    929,253.20/1,282,446.72 = 515,828.88/x
  3. Step 3: Cross multiply
    929,253.20x = 1,282,446.72 × 515,828.88
  4. Step 4: Simplify right side
    929,253.20x = 661,523,055,237.27
  5. Step 5: Solve for x
    x = 661,523,055,237.27/929,253.20
  6. Step 6: Final answer
    x = 711,886.77

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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.