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Finding the Fourth Proportional to 605,570.88, 908,918.11 and 306,263.53

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Solution

The fourth proportional to 605,570.88, 908,918.11 and 306,263.53 is: 459,679.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,570.88 : 908,918.11 = 306,263.53 : x
  2. Step 2: Convert to fraction form
    605,570.88/908,918.11 = 306,263.53/x
  3. Step 3: Cross multiply
    605,570.88x = 908,918.11 × 306,263.53
  4. Step 4: Simplify right side
    605,570.88x = 278,368,470,368.51
  5. Step 5: Solve for x
    x = 278,368,470,368.51/605,570.88
  6. Step 6: Final answer
    x = 459,679.42

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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.