Home / 1,230,215.40-1,845,323.10-388,767.15

Finding the Fourth Proportional to 1,230,215.40, 1,845,323.10 and 388,767.15

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Solution

The fourth proportional to 1,230,215.40, 1,845,323.10 and 388,767.15 is: 583,150.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,230,215.40 : 1,845,323.10 = 388,767.15 : x
  2. Step 2: Convert to fraction form
    1,230,215.40/1,845,323.10 = 388,767.15/x
  3. Step 3: Cross multiply
    1,230,215.40x = 1,845,323.10 × 388,767.15
  4. Step 4: Simplify right side
    1,230,215.40x = 717,401,002,416.17
  5. Step 5: Solve for x
    x = 717,401,002,416.17/1,230,215.40
  6. Step 6: Final answer
    x = 583,150.73

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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.