Home / 839,705.91-1,158,752.30-477,081.87

Finding the Fourth Proportional to 839,705.91, 1,158,752.30 and 477,081.87

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Solution

The fourth proportional to 839,705.91, 1,158,752.30 and 477,081.87 is: 658,349.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,705.91 : 1,158,752.30 = 477,081.87 : x
  2. Step 2: Convert to fraction form
    839,705.91/1,158,752.30 = 477,081.87/x
  3. Step 3: Cross multiply
    839,705.91x = 1,158,752.30 × 477,081.87
  4. Step 4: Simplify right side
    839,705.91x = 552,819,711,765.39
  5. Step 5: Solve for x
    x = 552,819,711,765.39/839,705.91
  6. Step 6: Final answer
    x = 658,349.20

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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.