Home / 927,011.52-1,279,312.35-519,109.76

Finding the Fourth Proportional to 927,011.52, 1,279,312.35 and 519,109.76

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Solution

The fourth proportional to 927,011.52, 1,279,312.35 and 519,109.76 is: 716,391.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    927,011.52 : 1,279,312.35 = 519,109.76 : x
  2. Step 2: Convert to fraction form
    927,011.52/1,279,312.35 = 519,109.76/x
  3. Step 3: Cross multiply
    927,011.52x = 1,279,312.35 × 519,109.76
  4. Step 4: Simplify right side
    927,011.52x = 664,103,528,225.16
  5. Step 5: Solve for x
    x = 664,103,528,225.16/927,011.52
  6. Step 6: Final answer
    x = 716,391.88

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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.