Home / 906,964.19-1,251,619.47-499,074.81

Finding the Fourth Proportional to 906,964.19, 1,251,619.47 and 499,074.81

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Solution

The fourth proportional to 906,964.19, 1,251,619.47 and 499,074.81 is: 688,728.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    906,964.19 : 1,251,619.47 = 499,074.81 : x
  2. Step 2: Convert to fraction form
    906,964.19/1,251,619.47 = 499,074.81/x
  3. Step 3: Cross multiply
    906,964.19x = 1,251,619.47 × 499,074.81
  4. Step 4: Simplify right side
    906,964.19x = 624,651,746,687.18
  5. Step 5: Solve for x
    x = 624,651,746,687.18/906,964.19
  6. Step 6: Final answer
    x = 688,728.13

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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.