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Finding the Fourth Proportional to 668,828.76, 923,010.30 and 367,033.56

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Solution

The fourth proportional to 668,828.76, 923,010.30 and 367,033.56 is: 506,520.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,828.76 : 923,010.30 = 367,033.56 : x
  2. Step 2: Convert to fraction form
    668,828.76/923,010.30 = 367,033.56/x
  3. Step 3: Cross multiply
    668,828.76x = 923,010.30 × 367,033.56
  4. Step 4: Simplify right side
    668,828.76x = 338,775,756,325.67
  5. Step 5: Solve for x
    x = 338,775,756,325.67/668,828.76
  6. Step 6: Final answer
    x = 506,520.92

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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.