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Finding the Fourth Proportional to 301,612.76, 452,418.75 and 76,973.20

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Solution

The fourth proportional to 301,612.76, 452,418.75 and 76,973.20 is: 115,459.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    301,612.76 : 452,418.75 = 76,973.20 : x
  2. Step 2: Convert to fraction form
    301,612.76/452,418.75 = 76,973.20/x
  3. Step 3: Cross multiply
    301,612.76x = 452,418.75 × 76,973.20
  4. Step 4: Simplify right side
    301,612.76x = 34,824,116,665.41
  5. Step 5: Solve for x
    x = 34,824,116,665.41/301,612.76
  6. Step 6: Final answer
    x = 115,459.69

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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.