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Finding the Fourth Proportional to 874,608.16, 1,206,546.67 and 511,807.40

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Solution

The fourth proportional to 874,608.16, 1,206,546.67 and 511,807.40 is: 706,052.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    874,608.16 : 1,206,546.67 = 511,807.40 : x
  2. Step 2: Convert to fraction form
    874,608.16/1,206,546.67 = 511,807.40/x
  3. Step 3: Cross multiply
    874,608.16x = 1,206,546.67 × 511,807.40
  4. Step 4: Simplify right side
    874,608.16x = 617,519,514,151.36
  5. Step 5: Solve for x
    x = 617,519,514,151.36/874,608.16
  6. Step 6: Final answer
    x = 706,052.77

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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.