Home / 991,417.56-1,368,153.42-538,708.44

Finding the Fourth Proportional to 991,417.56, 1,368,153.42 and 538,708.44

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Solution

The fourth proportional to 991,417.56, 1,368,153.42 and 538,708.44 is: 743,416.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    991,417.56 : 1,368,153.42 = 538,708.44 : x
  2. Step 2: Convert to fraction form
    991,417.56/1,368,153.42 = 538,708.44/x
  3. Step 3: Cross multiply
    991,417.56x = 1,368,153.42 × 538,708.44
  4. Step 4: Simplify right side
    991,417.56x = 737,035,794,568.87
  5. Step 5: Solve for x
    x = 737,035,794,568.87/991,417.56
  6. Step 6: Final answer
    x = 743,416.12

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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.