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Finding the Fourth Proportional to 403,778.30, 606,250.65 and 304,634.30

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Solution

The fourth proportional to 403,778.30, 606,250.65 and 304,634.30 is: 457,391.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,778.30 : 606,250.65 = 304,634.30 : x
  2. Step 2: Convert to fraction form
    403,778.30/606,250.65 = 304,634.30/x
  3. Step 3: Cross multiply
    403,778.30x = 606,250.65 × 304,634.30
  4. Step 4: Simplify right side
    403,778.30x = 184,684,742,387.30
  5. Step 5: Solve for x
    x = 184,684,742,387.30/403,778.30
  6. Step 6: Final answer
    x = 457,391.45

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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.