Home / 912,987.41-1,369,213.55-343,957.96

Finding the Fourth Proportional to 912,987.41, 1,369,213.55 and 343,957.96

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Solution

The fourth proportional to 912,987.41, 1,369,213.55 and 343,957.96 is: 515,836.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,987.41 : 1,369,213.55 = 343,957.96 : x
  2. Step 2: Convert to fraction form
    912,987.41/1,369,213.55 = 343,957.96/x
  3. Step 3: Cross multiply
    912,987.41x = 1,369,213.55 × 343,957.96
  4. Step 4: Simplify right side
    912,987.41x = 470,951,890,896.50
  5. Step 5: Solve for x
    x = 470,951,890,896.50/912,987.41
  6. Step 6: Final answer
    x = 515,836.13

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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.