Home / 641,440.04-961,392.15-299,423.30

Finding the Fourth Proportional to 641,440.04, 961,392.15 and 299,423.30

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Solution

The fourth proportional to 641,440.04, 961,392.15 and 299,423.30 is: 448,776.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,440.04 : 961,392.15 = 299,423.30 : x
  2. Step 2: Convert to fraction form
    641,440.04/961,392.15 = 299,423.30/x
  3. Step 3: Cross multiply
    641,440.04x = 961,392.15 × 299,423.30
  4. Step 4: Simplify right side
    641,440.04x = 287,863,205,340.13
  5. Step 5: Solve for x
    x = 287,863,205,340.13/641,440.04
  6. Step 6: Final answer
    x = 448,776.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.