Home / 403,474.77-556,824.78-288,764.19

Finding the Fourth Proportional to 403,474.77, 556,824.78 and 288,764.19

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Solution

The fourth proportional to 403,474.77, 556,824.78 and 288,764.19 is: 398,515.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,474.77 : 556,824.78 = 288,764.19 : x
  2. Step 2: Convert to fraction form
    403,474.77/556,824.78 = 288,764.19/x
  3. Step 3: Cross multiply
    403,474.77x = 556,824.78 × 288,764.19
  4. Step 4: Simplify right side
    403,474.77x = 160,791,056,568.63
  5. Step 5: Solve for x
    x = 160,791,056,568.63/403,474.77
  6. Step 6: Final answer
    x = 398,515.76

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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.