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Finding the Fourth Proportional to 364,878.36, 547,093.98 and 128,248.20

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Solution

The fourth proportional to 364,878.36, 547,093.98 and 128,248.20 is: 192,293.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    364,878.36 : 547,093.98 = 128,248.20 : x
  2. Step 2: Convert to fraction form
    364,878.36/547,093.98 = 128,248.20/x
  3. Step 3: Cross multiply
    364,878.36x = 547,093.98 × 128,248.20
  4. Step 4: Simplify right side
    364,878.36x = 70,163,818,165.84
  5. Step 5: Solve for x
    x = 70,163,818,165.84/364,878.36
  6. Step 6: Final answer
    x = 192,293.72

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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.