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Finding the Fourth Proportional to 288,635.70, 432,953.55 and 235,491.60

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Solution

The fourth proportional to 288,635.70, 432,953.55 and 235,491.60 is: 353,237.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,635.70 : 432,953.55 = 235,491.60 : x
  2. Step 2: Convert to fraction form
    288,635.70/432,953.55 = 235,491.60/x
  3. Step 3: Cross multiply
    288,635.70x = 432,953.55 × 235,491.60
  4. Step 4: Simplify right side
    288,635.70x = 101,956,924,215.18
  5. Step 5: Solve for x
    x = 101,956,924,215.18/288,635.70
  6. Step 6: Final answer
    x = 353,237.40

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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.