Home / 815,536.50-1,125,440.40-457,840.50

Finding the Fourth Proportional to 815,536.50, 1,125,440.40 and 457,840.50

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Solution

The fourth proportional to 815,536.50, 1,125,440.40 and 457,840.50 is: 631,819.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,536.50 : 1,125,440.40 = 457,840.50 : x
  2. Step 2: Convert to fraction form
    815,536.50/1,125,440.40 = 457,840.50/x
  3. Step 3: Cross multiply
    815,536.50x = 1,125,440.40 × 457,840.50
  4. Step 4: Simplify right side
    815,536.50x = 515,272,195,456.20
  5. Step 5: Solve for x
    x = 515,272,195,456.20/815,536.50
  6. Step 6: Final answer
    x = 631,819.91

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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.