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Finding the Fourth Proportional to 474,647.80, 654,988.73 and 259,746.35

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Solution

The fourth proportional to 474,647.80, 654,988.73 and 259,746.35 is: 358,436.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    474,647.80 : 654,988.73 = 259,746.35 : x
  2. Step 2: Convert to fraction form
    474,647.80/654,988.73 = 259,746.35/x
  3. Step 3: Cross multiply
    474,647.80x = 654,988.73 × 259,746.35
  4. Step 4: Simplify right side
    474,647.80x = 170,130,928,796.03
  5. Step 5: Solve for x
    x = 170,130,928,796.03/474,647.80
  6. Step 6: Final answer
    x = 358,436.15

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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.