Home / 430,789.59-645,743.34-194,298.35

Finding the Fourth Proportional to 430,789.59, 645,743.34 and 194,298.35

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Solution

The fourth proportional to 430,789.59, 645,743.34 and 194,298.35 is: 291,248.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,789.59 : 645,743.34 = 194,298.35 : x
  2. Step 2: Convert to fraction form
    430,789.59/645,743.34 = 194,298.35/x
  3. Step 3: Cross multiply
    430,789.59x = 645,743.34 × 194,298.35
  4. Step 4: Simplify right side
    430,789.59x = 125,466,862,256.77
  5. Step 5: Solve for x
    x = 125,466,862,256.77/430,789.59
  6. Step 6: Final answer
    x = 291,248.59

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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.