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Finding the Fourth Proportional to 256,923.52, 384,886.58 and 189,332.90

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Solution

The fourth proportional to 256,923.52, 384,886.58 and 189,332.90 is: 283,631.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,923.52 : 384,886.58 = 189,332.90 : x
  2. Step 2: Convert to fraction form
    256,923.52/384,886.58 = 189,332.90/x
  3. Step 3: Cross multiply
    256,923.52x = 384,886.58 × 189,332.90
  4. Step 4: Simplify right side
    256,923.52x = 72,871,692,362.48
  5. Step 5: Solve for x
    x = 72,871,692,362.48/256,923.52
  6. Step 6: Final answer
    x = 283,631.85

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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.