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Finding the Fourth Proportional to 313,280.55, 432,327.51 and 170,040.60

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Solution

The fourth proportional to 313,280.55, 432,327.51 and 170,040.60 is: 234,656.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,280.55 : 432,327.51 = 170,040.60 : x
  2. Step 2: Convert to fraction form
    313,280.55/432,327.51 = 170,040.60/x
  3. Step 3: Cross multiply
    313,280.55x = 432,327.51 × 170,040.60
  4. Step 4: Simplify right side
    313,280.55x = 73,513,229,196.91
  5. Step 5: Solve for x
    x = 73,513,229,196.91/313,280.55
  6. Step 6: Final answer
    x = 234,656.22

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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.