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Finding the Fourth Proportional to 539,603.40, 744,658.74 and 297,886.11

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Solution

The fourth proportional to 539,603.40, 744,658.74 and 297,886.11 is: 411,086.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,603.40 : 744,658.74 = 297,886.11 : x
  2. Step 2: Convert to fraction form
    539,603.40/744,658.74 = 297,886.11/x
  3. Step 3: Cross multiply
    539,603.40x = 744,658.74 × 297,886.11
  4. Step 4: Simplify right side
    539,603.40x = 221,823,495,336.10
  5. Step 5: Solve for x
    x = 221,823,495,336.10/539,603.40
  6. Step 6: Final answer
    x = 411,086.17

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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.