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Finding the Fourth Proportional to 873,345.70, 1,306,908.15 and 605,851.30

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Solution

The fourth proportional to 873,345.70, 1,306,908.15 and 605,851.30 is: 906,619.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    873,345.70 : 1,306,908.15 = 605,851.30 : x
  2. Step 2: Convert to fraction form
    873,345.70/1,306,908.15 = 605,851.30/x
  3. Step 3: Cross multiply
    873,345.70x = 1,306,908.15 × 605,851.30
  4. Step 4: Simplify right side
    873,345.70x = 791,792,001,658.10
  5. Step 5: Solve for x
    x = 791,792,001,658.10/873,345.70
  6. Step 6: Final answer
    x = 906,619.22

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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.