Home / 917,564.20-1,266,591.71-611,528.90

Finding the Fourth Proportional to 917,564.20, 1,266,591.71 and 611,528.90

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Solution

The fourth proportional to 917,564.20, 1,266,591.71 and 611,528.90 is: 844,145.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,564.20 : 1,266,591.71 = 611,528.90 : x
  2. Step 2: Convert to fraction form
    917,564.20/1,266,591.71 = 611,528.90/x
  3. Step 3: Cross multiply
    917,564.20x = 1,266,591.71 × 611,528.90
  4. Step 4: Simplify right side
    917,564.20x = 774,557,430,361.28
  5. Step 5: Solve for x
    x = 774,557,430,361.28/917,564.20
  6. Step 6: Final answer
    x = 844,145.22

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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.