Home / 928,826.22-1,281,656.19-515,356.38

Finding the Fourth Proportional to 928,826.22, 1,281,656.19 and 515,356.38

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Solution

The fourth proportional to 928,826.22, 1,281,656.19 and 515,356.38 is: 711,123.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    928,826.22 : 1,281,656.19 = 515,356.38 : x
  2. Step 2: Convert to fraction form
    928,826.22/1,281,656.19 = 515,356.38/x
  3. Step 3: Cross multiply
    928,826.22x = 1,281,656.19 × 515,356.38
  4. Step 4: Simplify right side
    928,826.22x = 660,509,694,482.99
  5. Step 5: Solve for x
    x = 660,509,694,482.99/928,826.22
  6. Step 6: Final answer
    x = 711,123.01

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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.