Home / 684,182.28-944,130.87-378,240.35

Finding the Fourth Proportional to 684,182.28, 944,130.87 and 378,240.35

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Solution

The fourth proportional to 684,182.28, 944,130.87 and 378,240.35 is: 521,949.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,182.28 : 944,130.87 = 378,240.35 : x
  2. Step 2: Convert to fraction form
    684,182.28/944,130.87 = 378,240.35/x
  3. Step 3: Cross multiply
    684,182.28x = 944,130.87 × 378,240.35
  4. Step 4: Simplify right side
    684,182.28x = 357,108,385,993.95
  5. Step 5: Solve for x
    x = 357,108,385,993.95/684,182.28
  6. Step 6: Final answer
    x = 521,949.19

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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.