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Finding the Fourth Proportional to 288,446.48, 432,710.72 and 88,783.50

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Solution

The fourth proportional to 288,446.48, 432,710.72 and 88,783.50 is: 133,187.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,446.48 : 432,710.72 = 88,783.50 : x
  2. Step 2: Convert to fraction form
    288,446.48/432,710.72 = 88,783.50/x
  3. Step 3: Cross multiply
    288,446.48x = 432,710.72 × 88,783.50
  4. Step 4: Simplify right side
    288,446.48x = 38,417,571,765.20
  5. Step 5: Solve for x
    x = 38,417,571,765.20/288,446.48
  6. Step 6: Final answer
    x = 133,187.87

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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.