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Finding the Fourth Proportional to 451,658, 623,280.84 and 247,713.68

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Solution

The fourth proportional to 451,658, 623,280.84 and 247,713.68 is: 341,840.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,658 : 623,280.84 = 247,713.68 : x
  2. Step 2: Convert to fraction form
    451,658/623,280.84 = 247,713.68/x
  3. Step 3: Cross multiply
    451,658x = 623,280.84 × 247,713.68
  4. Step 4: Simplify right side
    451,658x = 154,395,190,549.89
  5. Step 5: Solve for x
    x = 154,395,190,549.89/451,658
  6. Step 6: Final answer
    x = 341,840.93

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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.