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Finding the Fourth Proportional to 630,116.28, 945,225.62 and 186,883

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Solution

The fourth proportional to 630,116.28, 945,225.62 and 186,883 is: 280,339.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,116.28 : 945,225.62 = 186,883 : x
  2. Step 2: Convert to fraction form
    630,116.28/945,225.62 = 186,883/x
  3. Step 3: Cross multiply
    630,116.28x = 945,225.62 × 186,883
  4. Step 4: Simplify right side
    630,116.28x = 176,646,599,542.46
  5. Step 5: Solve for x
    x = 176,646,599,542.46/630,116.28
  6. Step 6: Final answer
    x = 280,339.69

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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.