Home / 517,827.60-777,042.72-218,289.60

Finding the Fourth Proportional to 517,827.60, 777,042.72 and 218,289.60

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Solution

The fourth proportional to 517,827.60, 777,042.72 and 218,289.60 is: 327,561.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,827.60 : 777,042.72 = 218,289.60 : x
  2. Step 2: Convert to fraction form
    517,827.60/777,042.72 = 218,289.60/x
  3. Step 3: Cross multiply
    517,827.60x = 777,042.72 × 218,289.60
  4. Step 4: Simplify right side
    517,827.60x = 169,620,344,531.71
  5. Step 5: Solve for x
    x = 169,620,344,531.71/517,827.60
  6. Step 6: Final answer
    x = 327,561.42

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1.5x scale

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.