Home / 881,909.28-1,216,999.50-519,348.42

Finding the Fourth Proportional to 881,909.28, 1,216,999.50 and 519,348.42

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Solution

The fourth proportional to 881,909.28, 1,216,999.50 and 519,348.42 is: 716,680.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    881,909.28 : 1,216,999.50 = 519,348.42 : x
  2. Step 2: Convert to fraction form
    881,909.28/1,216,999.50 = 519,348.42/x
  3. Step 3: Cross multiply
    881,909.28x = 1,216,999.50 × 519,348.42
  4. Step 4: Simplify right side
    881,909.28x = 632,046,767,465.79
  5. Step 5: Solve for x
    x = 632,046,767,465.79/881,909.28
  6. Step 6: Final answer
    x = 716,680.03

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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.