Home / 661,192.23-991,799.28-287,215.23

Finding the Fourth Proportional to 661,192.23, 991,799.28 and 287,215.23

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Solution

The fourth proportional to 661,192.23, 991,799.28 and 287,215.23 is: 430,827.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,192.23 : 991,799.28 = 287,215.23 : x
  2. Step 2: Convert to fraction form
    661,192.23/991,799.28 = 287,215.23/x
  3. Step 3: Cross multiply
    661,192.23x = 991,799.28 × 287,215.23
  4. Step 4: Simplify right side
    661,192.23x = 284,859,858,319.03
  5. Step 5: Solve for x
    x = 284,859,858,319.03/661,192.23
  6. Step 6: Final answer
    x = 430,827.60

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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.