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Finding the Fourth Proportional to 511,248.30, 766,844.54 and 156,262.20

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Solution

The fourth proportional to 511,248.30, 766,844.54 and 156,262.20 is: 234,384.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,248.30 : 766,844.54 = 156,262.20 : x
  2. Step 2: Convert to fraction form
    511,248.30/766,844.54 = 156,262.20/x
  3. Step 3: Cross multiply
    511,248.30x = 766,844.54 × 156,262.20
  4. Step 4: Simplify right side
    511,248.30x = 119,828,814,878.39
  5. Step 5: Solve for x
    x = 119,828,814,878.39/511,248.30
  6. Step 6: Final answer
    x = 234,384.77

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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.