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Finding the Fourth Proportional to 456,418.20, 683,315.10 and 403,930.20

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Solution

The fourth proportional to 456,418.20, 683,315.10 and 403,930.20 is: 604,734.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,418.20 : 683,315.10 = 403,930.20 : x
  2. Step 2: Convert to fraction form
    456,418.20/683,315.10 = 403,930.20/x
  3. Step 3: Cross multiply
    456,418.20x = 683,315.10 × 403,930.20
  4. Step 4: Simplify right side
    456,418.20x = 276,011,605,006.02
  5. Step 5: Solve for x
    x = 276,011,605,006.02/456,418.20
  6. Step 6: Final answer
    x = 604,734.00

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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.