Home / 991,730.32-1,368,616.71-561,996.16

Finding the Fourth Proportional to 991,730.32, 1,368,616.71 and 561,996.16

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Solution

The fourth proportional to 991,730.32, 1,368,616.71 and 561,996.16 is: 775,571.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    991,730.32 : 1,368,616.71 = 561,996.16 : x
  2. Step 2: Convert to fraction form
    991,730.32/1,368,616.71 = 561,996.16/x
  3. Step 3: Cross multiply
    991,730.32x = 1,368,616.71 × 561,996.16
  4. Step 4: Simplify right side
    991,730.32x = 769,157,335,531.83
  5. Step 5: Solve for x
    x = 769,157,335,531.83/991,730.32
  6. Step 6: Final answer
    x = 775,571.06

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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.