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Finding the Fourth Proportional to 555,853.55, 766,796.15 and 351,560.40

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Solution

The fourth proportional to 555,853.55, 766,796.15 and 351,560.40 is: 484,975.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,853.55 : 766,796.15 = 351,560.40 : x
  2. Step 2: Convert to fraction form
    555,853.55/766,796.15 = 351,560.40/x
  3. Step 3: Cross multiply
    555,853.55x = 766,796.15 × 351,560.40
  4. Step 4: Simplify right side
    555,853.55x = 269,575,159,454.66
  5. Step 5: Solve for x
    x = 269,575,159,454.66/555,853.55
  6. Step 6: Final answer
    x = 484,975.16

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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.