Home / 1,399,088.80-1,930,685.52-826,314.40

Finding the Fourth Proportional to 1,399,088.80, 1,930,685.52 and 826,314.40

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Solution

The fourth proportional to 1,399,088.80, 1,930,685.52 and 826,314.40 is: 1,140,280.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,399,088.80 : 1,930,685.52 = 826,314.40 : x
  2. Step 2: Convert to fraction form
    1,399,088.80/1,930,685.52 = 826,314.40/x
  3. Step 3: Cross multiply
    1,399,088.80x = 1,930,685.52 × 826,314.40
  4. Step 4: Simplify right side
    1,399,088.80x = 1,595,353,247,047.49
  5. Step 5: Solve for x
    x = 1,595,353,247,047.49/1,399,088.80
  6. Step 6: Final answer
    x = 1,140,280.19

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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.