Home / 614,864.20-921,858.90-235,638.40

Finding the Fourth Proportional to 614,864.20, 921,858.90 and 235,638.40

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Solution

The fourth proportional to 614,864.20, 921,858.90 and 235,638.40 is: 353,289.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    614,864.20 : 921,858.90 = 235,638.40 : x
  2. Step 2: Convert to fraction form
    614,864.20/921,858.90 = 235,638.40/x
  3. Step 3: Cross multiply
    614,864.20x = 921,858.90 × 235,638.40
  4. Step 4: Simplify right side
    614,864.20x = 217,225,356,221.76
  5. Step 5: Solve for x
    x = 217,225,356,221.76/614,864.20
  6. Step 6: Final answer
    x = 353,289.97

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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.