Home / 614,780.20-921,176.70-347,746.60

Finding the Fourth Proportional to 614,780.20, 921,176.70 and 347,746.60

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Solution

The fourth proportional to 614,780.20, 921,176.70 and 347,746.60 is: 521,057.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    614,780.20 : 921,176.70 = 347,746.60 : x
  2. Step 2: Convert to fraction form
    614,780.20/921,176.70 = 347,746.60/x
  3. Step 3: Cross multiply
    614,780.20x = 921,176.70 × 347,746.60
  4. Step 4: Simplify right side
    614,780.20x = 320,336,065,424.22
  5. Step 5: Solve for x
    x = 320,336,065,424.22/614,780.20
  6. Step 6: Final answer
    x = 521,057.88

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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.