Home / 684,934.14-944,979.03-398,220.06

Finding the Fourth Proportional to 684,934.14, 944,979.03 and 398,220.06

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Solution

The fourth proportional to 684,934.14, 944,979.03 and 398,220.06 is: 549,409.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,934.14 : 944,979.03 = 398,220.06 : x
  2. Step 2: Convert to fraction form
    684,934.14/944,979.03 = 398,220.06/x
  3. Step 3: Cross multiply
    684,934.14x = 944,979.03 × 398,220.06
  4. Step 4: Simplify right side
    684,934.14x = 376,309,606,025.34
  5. Step 5: Solve for x
    x = 376,309,606,025.34/684,934.14
  6. Step 6: Final answer
    x = 549,409.91

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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.