Home / 821,916.43-1,134,279.71-459,340.29

Finding the Fourth Proportional to 821,916.43, 1,134,279.71 and 459,340.29

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Solution

The fourth proportional to 821,916.43, 1,134,279.71 and 459,340.29 is: 633,909.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,916.43 : 1,134,279.71 = 459,340.29 : x
  2. Step 2: Convert to fraction form
    821,916.43/1,134,279.71 = 459,340.29/x
  3. Step 3: Cross multiply
    821,916.43x = 1,134,279.71 × 459,340.29
  4. Step 4: Simplify right side
    821,916.43x = 521,020,370,932.52
  5. Step 5: Solve for x
    x = 521,020,370,932.52/821,916.43
  6. Step 6: Final answer
    x = 633,909.18

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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.