Home / 641,180.24-961,962.93-191,915.78

Finding the Fourth Proportional to 641,180.24, 961,962.93 and 191,915.78

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Solution

The fourth proportional to 641,180.24, 961,962.93 and 191,915.78 is: 287,931.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,180.24 : 961,962.93 = 191,915.78 : x
  2. Step 2: Convert to fraction form
    641,180.24/961,962.93 = 191,915.78/x
  3. Step 3: Cross multiply
    641,180.24x = 961,962.93 × 191,915.78
  4. Step 4: Simplify right side
    641,180.24x = 184,615,866,042.04
  5. Step 5: Solve for x
    x = 184,615,866,042.04/641,180.24
  6. Step 6: Final answer
    x = 287,931.31

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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.