Home / 1,281,886.20-1,921,274.10-571,159.80

Finding the Fourth Proportional to 1,281,886.20, 1,921,274.10 and 571,159.80

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Solution

The fourth proportional to 1,281,886.20, 1,921,274.10 and 571,159.80 is: 856,046.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,281,886.20 : 1,921,274.10 = 571,159.80 : x
  2. Step 2: Convert to fraction form
    1,281,886.20/1,921,274.10 = 571,159.80/x
  3. Step 3: Cross multiply
    1,281,886.20x = 1,921,274.10 × 571,159.80
  4. Step 4: Simplify right side
    1,281,886.20x = 1,097,354,530,701.18
  5. Step 5: Solve for x
    x = 1,097,354,530,701.18/1,281,886.20
  6. Step 6: Final answer
    x = 856,046.76

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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.