Home / 919,064.43-1,268,121.15-537,017.40

Finding the Fourth Proportional to 919,064.43, 1,268,121.15 and 537,017.40

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Solution

The fourth proportional to 919,064.43, 1,268,121.15 and 537,017.40 is: 740,974.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,064.43 : 1,268,121.15 = 537,017.40 : x
  2. Step 2: Convert to fraction form
    919,064.43/1,268,121.15 = 537,017.40/x
  3. Step 3: Cross multiply
    919,064.43x = 1,268,121.15 × 537,017.40
  4. Step 4: Simplify right side
    919,064.43x = 681,003,122,858.01
  5. Step 5: Solve for x
    x = 681,003,122,858.01/919,064.43
  6. Step 6: Final answer
    x = 740,974.30

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Double scale
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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.