Home / 926,761.06-1,389,873.20-278,311.12

Finding the Fourth Proportional to 926,761.06, 1,389,873.20 and 278,311.12

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Solution

The fourth proportional to 926,761.06, 1,389,873.20 and 278,311.12 is: 417,386.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    926,761.06 : 1,389,873.20 = 278,311.12 : x
  2. Step 2: Convert to fraction form
    926,761.06/1,389,873.20 = 278,311.12/x
  3. Step 3: Cross multiply
    926,761.06x = 1,389,873.20 × 278,311.12
  4. Step 4: Simplify right side
    926,761.06x = 386,817,166,949.98
  5. Step 5: Solve for x
    x = 386,817,166,949.98/926,761.06
  6. Step 6: Final answer
    x = 417,386.08

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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.