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Finding the Fourth Proportional to 476,282.88, 657,278.85 and 261,442.93

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Solution

The fourth proportional to 476,282.88, 657,278.85 and 261,442.93 is: 360,795.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,282.88 : 657,278.85 = 261,442.93 : x
  2. Step 2: Convert to fraction form
    476,282.88/657,278.85 = 261,442.93/x
  3. Step 3: Cross multiply
    476,282.88x = 657,278.85 × 261,442.93
  4. Step 4: Simplify right side
    476,282.88x = 171,840,908,371.03
  5. Step 5: Solve for x
    x = 171,840,908,371.03/476,282.88
  6. Step 6: Final answer
    x = 360,795.90

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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.