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Finding the Fourth Proportional to 330,307.36, 455,826.56 and 179,404.32

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Solution

The fourth proportional to 330,307.36, 455,826.56 and 179,404.32 is: 247,579.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,307.36 : 455,826.56 = 179,404.32 : x
  2. Step 2: Convert to fraction form
    330,307.36/455,826.56 = 179,404.32/x
  3. Step 3: Cross multiply
    330,307.36x = 455,826.56 × 179,404.32
  4. Step 4: Simplify right side
    330,307.36x = 81,777,254,034.74
  5. Step 5: Solve for x
    x = 81,777,254,034.74/330,307.36
  6. Step 6: Final answer
    x = 247,579.27

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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.