Home / 560,111.88-772,923.66-318,360.90

Finding the Fourth Proportional to 560,111.88, 772,923.66 and 318,360.90

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Solution

The fourth proportional to 560,111.88, 772,923.66 and 318,360.90 is: 439,320.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,111.88 : 772,923.66 = 318,360.90 : x
  2. Step 2: Convert to fraction form
    560,111.88/772,923.66 = 318,360.90/x
  3. Step 3: Cross multiply
    560,111.88x = 772,923.66 × 318,360.90
  4. Step 4: Simplify right side
    560,111.88x = 246,068,672,028.89
  5. Step 5: Solve for x
    x = 246,068,672,028.89/560,111.88
  6. Step 6: Final answer
    x = 439,320.57

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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.