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Finding the Fourth Proportional to 539,872.88, 745,030.19 and 298,161.59

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Solution

The fourth proportional to 539,872.88, 745,030.19 and 298,161.59 is: 411,466.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,872.88 : 745,030.19 = 298,161.59 : x
  2. Step 2: Convert to fraction form
    539,872.88/745,030.19 = 298,161.59/x
  3. Step 3: Cross multiply
    539,872.88x = 745,030.19 × 298,161.59
  4. Step 4: Simplify right side
    539,872.88x = 222,139,386,048.40
  5. Step 5: Solve for x
    x = 222,139,386,048.40/539,872.88
  6. Step 6: Final answer
    x = 411,466.10

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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.