Home / 684,033.57-943,929.45-378,091.71

Finding the Fourth Proportional to 684,033.57, 943,929.45 and 378,091.71

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Solution

The fourth proportional to 684,033.57, 943,929.45 and 378,091.71 is: 521,746.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,033.57 : 943,929.45 = 378,091.71 : x
  2. Step 2: Convert to fraction form
    684,033.57/943,929.45 = 378,091.71/x
  3. Step 3: Cross multiply
    684,033.57x = 943,929.45 × 378,091.71
  4. Step 4: Simplify right side
    684,033.57x = 356,891,899,869.86
  5. Step 5: Solve for x
    x = 356,891,899,869.86/684,033.57
  6. Step 6: Final answer
    x = 521,746.18

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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.