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Finding the Fourth Proportional to 1,143,287.16, 1,714,571.16 and 413,716.20

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Solution

The fourth proportional to 1,143,287.16, 1,714,571.16 and 413,716.20 is: 620,444.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,143,287.16 : 1,714,571.16 = 413,716.20 : x
  2. Step 2: Convert to fraction form
    1,143,287.16/1,714,571.16 = 413,716.20/x
  3. Step 3: Cross multiply
    1,143,287.16x = 1,714,571.16 × 413,716.20
  4. Step 4: Simplify right side
    1,143,287.16x = 709,345,864,944.79
  5. Step 5: Solve for x
    x = 709,345,864,944.79/1,143,287.16
  6. Step 6: Final answer
    x = 620,444.18

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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.