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Finding the Fourth Proportional to 608,624.30, 912,936.45 and 397,117.10

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Solution

The fourth proportional to 608,624.30, 912,936.45 and 397,117.10 is: 595,675.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,624.30 : 912,936.45 = 397,117.10 : x
  2. Step 2: Convert to fraction form
    608,624.30/912,936.45 = 397,117.10/x
  3. Step 3: Cross multiply
    608,624.30x = 912,936.45 × 397,117.10
  4. Step 4: Simplify right side
    608,624.30x = 362,542,675,508.30
  5. Step 5: Solve for x
    x = 362,542,675,508.30/608,624.30
  6. Step 6: Final answer
    x = 595,675.65

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.