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Finding the Fourth Proportional to 297,867.40, 447,722.70 and 292,337.80

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Solution

The fourth proportional to 297,867.40, 447,722.70 and 292,337.80 is: 439,411.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,867.40 : 447,722.70 = 292,337.80 : x
  2. Step 2: Convert to fraction form
    297,867.40/447,722.70 = 292,337.80/x
  3. Step 3: Cross multiply
    297,867.40x = 447,722.70 × 292,337.80
  4. Step 4: Simplify right side
    297,867.40x = 130,886,269,128.06
  5. Step 5: Solve for x
    x = 130,886,269,128.06/297,867.40
  6. Step 6: Final answer
    x = 439,411.19

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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.