Home / 351,431.10-527,146.65-258,119.10

Finding the Fourth Proportional to 351,431.10, 527,146.65 and 258,119.10

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Solution

The fourth proportional to 351,431.10, 527,146.65 and 258,119.10 is: 387,178.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,431.10 : 527,146.65 = 258,119.10 : x
  2. Step 2: Convert to fraction form
    351,431.10/527,146.65 = 258,119.10/x
  3. Step 3: Cross multiply
    351,431.10x = 527,146.65 × 258,119.10
  4. Step 4: Simplify right side
    351,431.10x = 136,066,618,866.02
  5. Step 5: Solve for x
    x = 136,066,618,866.02/351,431.10
  6. Step 6: Final answer
    x = 387,178.65

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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.