Home / 926,526.87-1,278,628.73-518,618.56

Finding the Fourth Proportional to 926,526.87, 1,278,628.73 and 518,618.56

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Solution

The fourth proportional to 926,526.87, 1,278,628.73 and 518,618.56 is: 715,705.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    926,526.87 : 1,278,628.73 = 518,618.56 : x
  2. Step 2: Convert to fraction form
    926,526.87/1,278,628.73 = 518,618.56/x
  3. Step 3: Cross multiply
    926,526.87x = 1,278,628.73 × 518,618.56
  4. Step 4: Simplify right side
    926,526.87x = 663,120,590,727.23
  5. Step 5: Solve for x
    x = 663,120,590,727.23/926,526.87
  6. Step 6: Final answer
    x = 715,705.73

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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.