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Finding the Fourth Proportional to 297,155.70, 410,011.80 and 176,336.30

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Solution

The fourth proportional to 297,155.70, 410,011.80 and 176,336.30 is: 243,306.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,155.70 : 410,011.80 = 176,336.30 : x
  2. Step 2: Convert to fraction form
    297,155.70/410,011.80 = 176,336.30/x
  3. Step 3: Cross multiply
    297,155.70x = 410,011.80 × 176,336.30
  4. Step 4: Simplify right side
    297,155.70x = 72,299,963,768.34
  5. Step 5: Solve for x
    x = 72,299,963,768.34/297,155.70
  6. Step 6: Final answer
    x = 243,306.67

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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.