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Finding the Fourth Proportional to 605,177.70, 906,211.35 and 446,547.30

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Solution

The fourth proportional to 605,177.70, 906,211.35 and 446,547.30 is: 668,673.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,177.70 : 906,211.35 = 446,547.30 : x
  2. Step 2: Convert to fraction form
    605,177.70/906,211.35 = 446,547.30/x
  3. Step 3: Cross multiply
    605,177.70x = 906,211.35 × 446,547.30
  4. Step 4: Simplify right side
    605,177.70x = 404,666,231,571.86
  5. Step 5: Solve for x
    x = 404,666,231,571.86/605,177.70
  6. Step 6: Final answer
    x = 668,673.40

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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.