Home / 641,461.11-885,230.78-415,499.91

Finding the Fourth Proportional to 641,461.11, 885,230.78 and 415,499.91

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Solution

The fourth proportional to 641,461.11, 885,230.78 and 415,499.91 is: 573,399.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,461.11 : 885,230.78 = 415,499.91 : x
  2. Step 2: Convert to fraction form
    641,461.11/885,230.78 = 415,499.91/x
  3. Step 3: Cross multiply
    641,461.11x = 885,230.78 × 415,499.91
  4. Step 4: Simplify right side
    641,461.11x = 367,813,307,341.73
  5. Step 5: Solve for x
    x = 367,813,307,341.73/641,461.11
  6. Step 6: Final answer
    x = 573,399.23

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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.