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Finding the Fourth Proportional to 364,512.30, 546,768.45 and 127,878.90

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Solution

The fourth proportional to 364,512.30, 546,768.45 and 127,878.90 is: 191,818.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    364,512.30 : 546,768.45 = 127,878.90 : x
  2. Step 2: Convert to fraction form
    364,512.30/546,768.45 = 127,878.90/x
  3. Step 3: Cross multiply
    364,512.30x = 546,768.45 × 127,878.90
  4. Step 4: Simplify right side
    364,512.30x = 69,920,147,940.71
  5. Step 5: Solve for x
    x = 69,920,147,940.71/364,512.30
  6. Step 6: Final answer
    x = 191,818.35

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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.