Home / 326,979.18-451,066.32-283,900.14

Finding the Fourth Proportional to 326,979.18, 451,066.32 and 283,900.14

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Solution

The fourth proportional to 326,979.18, 451,066.32 and 283,900.14 is: 391,638.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,979.18 : 451,066.32 = 283,900.14 : x
  2. Step 2: Convert to fraction form
    326,979.18/451,066.32 = 283,900.14/x
  3. Step 3: Cross multiply
    326,979.18x = 451,066.32 × 283,900.14
  4. Step 4: Simplify right side
    326,979.18x = 128,057,791,397.29
  5. Step 5: Solve for x
    x = 128,057,791,397.29/326,979.18
  6. Step 6: Final answer
    x = 391,638.98

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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.