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Finding the Fourth Proportional to 636,311.65, 954,467.70 and 187,032.60

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Solution

The fourth proportional to 636,311.65, 954,467.70 and 187,032.60 is: 280,548.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,311.65 : 954,467.70 = 187,032.60 : x
  2. Step 2: Convert to fraction form
    636,311.65/954,467.70 = 187,032.60/x
  3. Step 3: Cross multiply
    636,311.65x = 954,467.70 × 187,032.60
  4. Step 4: Simplify right side
    636,311.65x = 178,516,575,547.02
  5. Step 5: Solve for x
    x = 178,516,575,547.02/636,311.65
  6. Step 6: Final answer
    x = 280,548.97

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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.