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Finding the Fourth Proportional to 496,965.60, 745,448.40 and 418,233.60

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Solution

The fourth proportional to 496,965.60, 745,448.40 and 418,233.60 is: 627,350.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,965.60 : 745,448.40 = 418,233.60 : x
  2. Step 2: Convert to fraction form
    496,965.60/745,448.40 = 418,233.60/x
  3. Step 3: Cross multiply
    496,965.60x = 745,448.40 × 418,233.60
  4. Step 4: Simplify right side
    496,965.60x = 311,771,567,946.24
  5. Step 5: Solve for x
    x = 311,771,567,946.24/496,965.60
  6. Step 6: Final answer
    x = 627,350.40

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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.