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Finding the Fourth Proportional to 539,604.78, 744,660.62 and 297,887.48

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Solution

The fourth proportional to 539,604.78, 744,660.62 and 297,887.48 is: 411,088.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,604.78 : 744,660.62 = 297,887.48 : x
  2. Step 2: Convert to fraction form
    539,604.78/744,660.62 = 297,887.48/x
  3. Step 3: Cross multiply
    539,604.78x = 744,660.62 × 297,887.48
  4. Step 4: Simplify right side
    539,604.78x = 221,825,075,547.04
  5. Step 5: Solve for x
    x = 221,825,075,547.04/539,604.78
  6. Step 6: Final answer
    x = 411,088.05

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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.