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Finding the Fourth Proportional to 299,248.34, 412,962.52 and 191,818.30

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Solution

The fourth proportional to 299,248.34, 412,962.52 and 191,818.30 is: 264,709.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,248.34 : 412,962.52 = 191,818.30 : x
  2. Step 2: Convert to fraction form
    299,248.34/412,962.52 = 191,818.30/x
  3. Step 3: Cross multiply
    299,248.34x = 412,962.52 × 191,818.30
  4. Step 4: Simplify right side
    299,248.34x = 79,213,768,550.12
  5. Step 5: Solve for x
    x = 79,213,768,550.12/299,248.34
  6. Step 6: Final answer
    x = 264,709.13

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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.