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Finding the Fourth Proportional to 467,603.90, 645,288.85 and 260,874.08

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Solution

The fourth proportional to 467,603.90, 645,288.85 and 260,874.08 is: 360,003.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    467,603.90 : 645,288.85 = 260,874.08 : x
  2. Step 2: Convert to fraction form
    467,603.90/645,288.85 = 260,874.08/x
  3. Step 3: Cross multiply
    467,603.90x = 645,288.85 × 260,874.08
  4. Step 4: Simplify right side
    467,603.90x = 168,339,135,078.01
  5. Step 5: Solve for x
    x = 168,339,135,078.01/467,603.90
  6. Step 6: Final answer
    x = 360,003.70

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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.