Home / 921,806.60-1,381,710.56-471,910.32

Finding the Fourth Proportional to 921,806.60, 1,381,710.56 and 471,910.32

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Solution

The fourth proportional to 921,806.60, 1,381,710.56 and 471,910.32 is: 707,353.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    921,806.60 : 1,381,710.56 = 471,910.32 : x
  2. Step 2: Convert to fraction form
    921,806.60/1,381,710.56 = 471,910.32/x
  3. Step 3: Cross multiply
    921,806.60x = 1,381,710.56 × 471,910.32
  4. Step 4: Simplify right side
    921,806.60x = 652,043,470,157.43
  5. Step 5: Solve for x
    x = 652,043,470,157.43/921,806.60
  6. Step 6: Final answer
    x = 707,353.88

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1.5x scale

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.