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Finding the Fourth Proportional to 405,938.60, 560,420.46 and 244,834.28

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Solution

The fourth proportional to 405,938.60, 560,420.46 and 244,834.28 is: 338,007.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,938.60 : 560,420.46 = 244,834.28 : x
  2. Step 2: Convert to fraction form
    405,938.60/560,420.46 = 244,834.28/x
  3. Step 3: Cross multiply
    405,938.60x = 560,420.46 × 244,834.28
  4. Step 4: Simplify right side
    405,938.60x = 137,210,139,821.37
  5. Step 5: Solve for x
    x = 137,210,139,821.37/405,938.60
  6. Step 6: Final answer
    x = 338,007.13

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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.