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Finding the Fourth Proportional to 605,722.04, 908,578.96 and 289,219.40

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Solution

The fourth proportional to 605,722.04, 908,578.96 and 289,219.40 is: 433,827.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,722.04 : 908,578.96 = 289,219.40 : x
  2. Step 2: Convert to fraction form
    605,722.04/908,578.96 = 289,219.40/x
  3. Step 3: Cross multiply
    605,722.04x = 908,578.96 × 289,219.40
  4. Step 4: Simplify right side
    605,722.04x = 262,778,661,663.82
  5. Step 5: Solve for x
    x = 262,778,661,663.82/605,722.04
  6. Step 6: Final answer
    x = 433,827.14

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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.