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Finding the Fourth Proportional to 491,167.20, 734,907.60 and 446,930.40

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Solution

The fourth proportional to 491,167.20, 734,907.60 and 446,930.40 is: 668,718.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,167.20 : 734,907.60 = 446,930.40 : x
  2. Step 2: Convert to fraction form
    491,167.20/734,907.60 = 446,930.40/x
  3. Step 3: Cross multiply
    491,167.20x = 734,907.60 × 446,930.40
  4. Step 4: Simplify right side
    491,167.20x = 328,452,547,631.04
  5. Step 5: Solve for x
    x = 328,452,547,631.04/491,167.20
  6. Step 6: Final answer
    x = 668,718.41

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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.