Home / 644,167.40-888,933.93-357,680.12

Finding the Fourth Proportional to 644,167.40, 888,933.93 and 357,680.12

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Solution

The fourth proportional to 644,167.40, 888,933.93 and 357,680.12 is: 493,589.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,167.40 : 888,933.93 = 357,680.12 : x
  2. Step 2: Convert to fraction form
    644,167.40/888,933.93 = 357,680.12/x
  3. Step 3: Cross multiply
    644,167.40x = 888,933.93 × 357,680.12
  4. Step 4: Simplify right side
    644,167.40x = 317,953,994,754.47
  5. Step 5: Solve for x
    x = 317,953,994,754.47/644,167.40
  6. Step 6: Final answer
    x = 493,589.08

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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.