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Finding the Fourth Proportional to 288,603.59, 398,015.10 and 181,183.64

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Solution

The fourth proportional to 288,603.59, 398,015.10 and 181,183.64 is: 249,871.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,603.59 : 398,015.10 = 181,183.64 : x
  2. Step 2: Convert to fraction form
    288,603.59/398,015.10 = 181,183.64/x
  3. Step 3: Cross multiply
    288,603.59x = 398,015.10 × 181,183.64
  4. Step 4: Simplify right side
    288,603.59x = 72,113,822,602.89
  5. Step 5: Solve for x
    x = 72,113,822,602.89/288,603.59
  6. Step 6: Final answer
    x = 249,871.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.