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Finding the Fourth Proportional to 326,331.04, 488,706.16 and 165,985.12

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Solution

The fourth proportional to 326,331.04, 488,706.16 and 165,985.12 is: 248,575.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,331.04 : 488,706.16 = 165,985.12 : x
  2. Step 2: Convert to fraction form
    326,331.04/488,706.16 = 165,985.12/x
  3. Step 3: Cross multiply
    326,331.04x = 488,706.16 × 165,985.12
  4. Step 4: Simplify right side
    326,331.04x = 81,117,950,612.34
  5. Step 5: Solve for x
    x = 81,117,950,612.34/326,331.04
  6. Step 6: Final answer
    x = 248,575.65

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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.