Home / 356,238.72-533,666.40-318,382.56

Finding the Fourth Proportional to 356,238.72, 533,666.40 and 318,382.56

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Solution

The fourth proportional to 356,238.72, 533,666.40 and 318,382.56 is: 476,955.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,238.72 : 533,666.40 = 318,382.56 : x
  2. Step 2: Convert to fraction form
    356,238.72/533,666.40 = 318,382.56/x
  3. Step 3: Cross multiply
    356,238.72x = 533,666.40 × 318,382.56
  4. Step 4: Simplify right side
    356,238.72x = 169,910,074,617.98
  5. Step 5: Solve for x
    x = 169,910,074,617.98/356,238.72
  6. Step 6: Final answer
    x = 476,955.66

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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.