Home / 382,037.09-527,372.81-257,885.15

Finding the Fourth Proportional to 382,037.09, 527,372.81 and 257,885.15

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Solution

The fourth proportional to 382,037.09, 527,372.81 and 257,885.15 is: 355,990.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,037.09 : 527,372.81 = 257,885.15 : x
  2. Step 2: Convert to fraction form
    382,037.09/527,372.81 = 257,885.15/x
  3. Step 3: Cross multiply
    382,037.09x = 527,372.81 × 257,885.15
  4. Step 4: Simplify right side
    382,037.09x = 136,001,613,253.55
  5. Step 5: Solve for x
    x = 136,001,613,253.55/382,037.09
  6. Step 6: Final answer
    x = 355,990.61

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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.