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Finding the Fourth Proportional to 1,012,270.16, 1,396,878 and 559,532

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Solution

The fourth proportional to 1,012,270.16, 1,396,878 and 559,532 is: 772,123.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,012,270.16 : 1,396,878 = 559,532 : x
  2. Step 2: Convert to fraction form
    1,012,270.16/1,396,878 = 559,532/x
  3. Step 3: Cross multiply
    1,012,270.16x = 1,396,878 × 559,532
  4. Step 4: Simplify right side
    1,012,270.16x = 781,597,941,096
  5. Step 5: Solve for x
    x = 781,597,941,096/1,012,270.16
  6. Step 6: Final answer
    x = 772,123.86

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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.