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Finding the Fourth Proportional to 316,864.80, 475,297.20 and 304,617.60

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Solution

The fourth proportional to 316,864.80, 475,297.20 and 304,617.60 is: 456,926.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,864.80 : 475,297.20 = 304,617.60 : x
  2. Step 2: Convert to fraction form
    316,864.80/475,297.20 = 304,617.60/x
  3. Step 3: Cross multiply
    316,864.80x = 475,297.20 × 304,617.60
  4. Step 4: Simplify right side
    316,864.80x = 144,783,892,350.72
  5. Step 5: Solve for x
    x = 144,783,892,350.72/316,864.80
  6. Step 6: Final answer
    x = 456,926.40

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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.