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Finding the Fourth Proportional to 567,356.40, 782,994.60 and 325,717.20

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Solution

The fourth proportional to 567,356.40, 782,994.60 and 325,717.20 is: 449,514.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,356.40 : 782,994.60 = 325,717.20 : x
  2. Step 2: Convert to fraction form
    567,356.40/782,994.60 = 325,717.20/x
  3. Step 3: Cross multiply
    567,356.40x = 782,994.60 × 325,717.20
  4. Step 4: Simplify right side
    567,356.40x = 255,034,808,727.12
  5. Step 5: Solve for x
    x = 255,034,808,727.12/567,356.40
  6. Step 6: Final answer
    x = 449,514.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.