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Finding the Fourth Proportional to 293,089.60, 439,780.20 and 115,602.40

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Solution

The fourth proportional to 293,089.60, 439,780.20 and 115,602.40 is: 173,461.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,089.60 : 439,780.20 = 115,602.40 : x
  2. Step 2: Convert to fraction form
    293,089.60/439,780.20 = 115,602.40/x
  3. Step 3: Cross multiply
    293,089.60x = 439,780.20 × 115,602.40
  4. Step 4: Simplify right side
    293,089.60x = 50,839,646,592.48
  5. Step 5: Solve for x
    x = 50,839,646,592.48/293,089.60
  6. Step 6: Final answer
    x = 173,461.11

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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.