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Finding the Fourth Proportional to 539,603.03, 744,658.20 and 297,885.72

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Solution

The fourth proportional to 539,603.03, 744,658.20 and 297,885.72 is: 411,085.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,603.03 : 744,658.20 = 297,885.72 : x
  2. Step 2: Convert to fraction form
    539,603.03/744,658.20 = 297,885.72/x
  3. Step 3: Cross multiply
    539,603.03x = 744,658.20 × 297,885.72
  4. Step 4: Simplify right side
    539,603.03x = 221,823,044,060.90
  5. Step 5: Solve for x
    x = 221,823,044,060.90/539,603.03
  6. Step 6: Final answer
    x = 411,085.62

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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.