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Finding the Fourth Proportional to 712,919.16, 1,066,721.13 and 704,947.14

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Solution

The fourth proportional to 712,919.16, 1,066,721.13 and 704,947.14 is: 1,054,792.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,919.16 : 1,066,721.13 = 704,947.14 : x
  2. Step 2: Convert to fraction form
    712,919.16/1,066,721.13 = 704,947.14/x
  3. Step 3: Cross multiply
    712,919.16x = 1,066,721.13 × 704,947.14
  4. Step 4: Simplify right side
    712,919.16x = 751,982,009,771.07
  5. Step 5: Solve for x
    x = 751,982,009,771.07/712,919.16
  6. Step 6: Final answer
    x = 1,054,792.82

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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.