Home / 1,141,864.80-1,712,278.80-431,656.80

Finding the Fourth Proportional to 1,141,864.80, 1,712,278.80 and 431,656.80

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Solution

The fourth proportional to 1,141,864.80, 1,712,278.80 and 431,656.80 is: 647,289.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,141,864.80 : 1,712,278.80 = 431,656.80 : x
  2. Step 2: Convert to fraction form
    1,141,864.80/1,712,278.80 = 431,656.80/x
  3. Step 3: Cross multiply
    1,141,864.80x = 1,712,278.80 × 431,656.80
  4. Step 4: Simplify right side
    1,141,864.80x = 739,116,787,515.84
  5. Step 5: Solve for x
    x = 739,116,787,515.84/1,141,864.80
  6. Step 6: Final answer
    x = 647,289.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.