Home / 664,030.95-916,335.63-392,186.85

Finding the Fourth Proportional to 664,030.95, 916,335.63 and 392,186.85

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Solution

The fourth proportional to 664,030.95, 916,335.63 and 392,186.85 is: 541,201.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,030.95 : 916,335.63 = 392,186.85 : x
  2. Step 2: Convert to fraction form
    664,030.95/916,335.63 = 392,186.85/x
  3. Step 3: Cross multiply
    664,030.95x = 916,335.63 × 392,186.85
  4. Step 4: Simplify right side
    664,030.95x = 359,374,784,272.47
  5. Step 5: Solve for x
    x = 359,374,784,272.47/664,030.95
  6. Step 6: Final answer
    x = 541,201.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.