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Finding the Fourth Proportional to 605,855.10, 908,005.05 and 368,946.30

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Solution

The fourth proportional to 605,855.10, 908,005.05 and 368,946.30 is: 552,945.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,855.10 : 908,005.05 = 368,946.30 : x
  2. Step 2: Convert to fraction form
    605,855.10/908,005.05 = 368,946.30/x
  3. Step 3: Cross multiply
    605,855.10x = 908,005.05 × 368,946.30
  4. Step 4: Simplify right side
    605,855.10x = 335,005,103,578.82
  5. Step 5: Solve for x
    x = 335,005,103,578.82/605,855.10
  6. Step 6: Final answer
    x = 552,945.92

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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.