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Finding the Fourth Proportional to 638,328.79, 957,525.99 and 165,018.25

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Solution

The fourth proportional to 638,328.79, 957,525.99 and 165,018.25 is: 247,535.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,328.79 : 957,525.99 = 165,018.25 : x
  2. Step 2: Convert to fraction form
    638,328.79/957,525.99 = 165,018.25/x
  3. Step 3: Cross multiply
    638,328.79x = 957,525.99 × 165,018.25
  4. Step 4: Simplify right side
    638,328.79x = 158,009,263,199.32
  5. Step 5: Solve for x
    x = 158,009,263,199.32/638,328.79
  6. Step 6: Final answer
    x = 247,535.86

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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.