Home / 638,225.91-881,042.81-454,582.71

Finding the Fourth Proportional to 638,225.91, 881,042.81 and 454,582.71

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Solution

The fourth proportional to 638,225.91, 881,042.81 and 454,582.71 is: 627,531.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,225.91 : 881,042.81 = 454,582.71 : x
  2. Step 2: Convert to fraction form
    638,225.91/881,042.81 = 454,582.71/x
  3. Step 3: Cross multiply
    638,225.91x = 881,042.81 × 454,582.71
  4. Step 4: Simplify right side
    638,225.91x = 400,506,825,922.90
  5. Step 5: Solve for x
    x = 400,506,825,922.90/638,225.91
  6. Step 6: Final answer
    x = 627,531.44

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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.