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Finding the Fourth Proportional to 403,488.50, 556,814.13 and 224,682.74

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Solution

The fourth proportional to 403,488.50, 556,814.13 and 224,682.74 is: 310,062.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,488.50 : 556,814.13 = 224,682.74 : x
  2. Step 2: Convert to fraction form
    403,488.50/556,814.13 = 224,682.74/x
  3. Step 3: Cross multiply
    403,488.50x = 556,814.13 × 224,682.74
  4. Step 4: Simplify right side
    403,488.50x = 125,106,524,399.12
  5. Step 5: Solve for x
    x = 125,106,524,399.12/403,488.50
  6. Step 6: Final answer
    x = 310,062.18

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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.