Home / 612,434.11-918,591.76-185,973.64

Finding the Fourth Proportional to 612,434.11, 918,591.76 and 185,973.64

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Solution

The fourth proportional to 612,434.11, 918,591.76 and 185,973.64 is: 278,942.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,434.11 : 918,591.76 = 185,973.64 : x
  2. Step 2: Convert to fraction form
    612,434.11/918,591.76 = 185,973.64/x
  3. Step 3: Cross multiply
    612,434.11x = 918,591.76 × 185,973.64
  4. Step 4: Simplify right side
    612,434.11x = 170,833,853,281.21
  5. Step 5: Solve for x
    x = 170,833,853,281.21/612,434.11
  6. Step 6: Final answer
    x = 278,942.42

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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.