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Finding the Fourth Proportional to 636,738.96, 954,779.76 and 187,401.60

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Solution

The fourth proportional to 636,738.96, 954,779.76 and 187,401.60 is: 281,005.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,738.96 : 954,779.76 = 187,401.60 : x
  2. Step 2: Convert to fraction form
    636,738.96/954,779.76 = 187,401.60/x
  3. Step 3: Cross multiply
    636,738.96x = 954,779.76 × 187,401.60
  4. Step 4: Simplify right side
    636,738.96x = 178,927,254,671.62
  5. Step 5: Solve for x
    x = 178,927,254,671.62/636,738.96
  6. Step 6: Final answer
    x = 281,005.66

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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.