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Finding the Fourth Proportional to 1,178,793, 1,768,189.50 and 430,839

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Solution

The fourth proportional to 1,178,793, 1,768,189.50 and 430,839 is: 646,258.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,178,793 : 1,768,189.50 = 430,839 : x
  2. Step 2: Convert to fraction form
    1,178,793/1,768,189.50 = 430,839/x
  3. Step 3: Cross multiply
    1,178,793x = 1,768,189.50 × 430,839
  4. Step 4: Simplify right side
    1,178,793x = 761,804,995,990.50
  5. Step 5: Solve for x
    x = 761,804,995,990.50/1,178,793
  6. Step 6: Final answer
    x = 646,258.50

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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.