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Finding the Fourth Proportional to 325,401.39, 488,417.70 and 157,040.19

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Solution

The fourth proportional to 325,401.39, 488,417.70 and 157,040.19 is: 235,712.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,401.39 : 488,417.70 = 157,040.19 : x
  2. Step 2: Convert to fraction form
    325,401.39/488,417.70 = 157,040.19/x
  3. Step 3: Cross multiply
    325,401.39x = 488,417.70 × 157,040.19
  4. Step 4: Simplify right side
    325,401.39x = 76,701,208,407.36
  5. Step 5: Solve for x
    x = 76,701,208,407.36/325,401.39
  6. Step 6: Final answer
    x = 235,712.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.