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Finding the Fourth Proportional to 890,877.78, 1,229,544.45 and 701,317.62

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Solution

The fourth proportional to 890,877.78, 1,229,544.45 and 701,317.62 is: 967,923.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,877.78 : 1,229,544.45 = 701,317.62 : x
  2. Step 2: Convert to fraction form
    890,877.78/1,229,544.45 = 701,317.62/x
  3. Step 3: Cross multiply
    890,877.78x = 1,229,544.45 × 701,317.62
  4. Step 4: Simplify right side
    890,877.78x = 862,301,187,358.21
  5. Step 5: Solve for x
    x = 862,301,187,358.21/890,877.78
  6. Step 6: Final answer
    x = 967,923.11

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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.