Home / 418,933.50-578,167.11-240,085.50

Finding the Fourth Proportional to 418,933.50, 578,167.11 and 240,085.50

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Solution

The fourth proportional to 418,933.50, 578,167.11 and 240,085.50 is: 331,340.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,933.50 : 578,167.11 = 240,085.50 : x
  2. Step 2: Convert to fraction form
    418,933.50/578,167.11 = 240,085.50/x
  3. Step 3: Cross multiply
    418,933.50x = 578,167.11 × 240,085.50
  4. Step 4: Simplify right side
    418,933.50x = 138,809,539,687.91
  5. Step 5: Solve for x
    x = 138,809,539,687.91/418,933.50
  6. Step 6: Final answer
    x = 331,340.27

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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.