Home / 815,531.76-1,125,402.71-452,978.88

Finding the Fourth Proportional to 815,531.76, 1,125,402.71 and 452,978.88

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Solution

The fourth proportional to 815,531.76, 1,125,402.71 and 452,978.88 is: 625,093.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,531.76 : 1,125,402.71 = 452,978.88 : x
  2. Step 2: Convert to fraction form
    815,531.76/1,125,402.71 = 452,978.88/x
  3. Step 3: Cross multiply
    815,531.76x = 1,125,402.71 × 452,978.88
  4. Step 4: Simplify right side
    815,531.76x = 509,783,659,124.77
  5. Step 5: Solve for x
    x = 509,783,659,124.77/815,531.76
  6. Step 6: Final answer
    x = 625,093.57

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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.