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Finding the Fourth Proportional to 405,411.80, 559,618.62 and 244,275.80

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Solution

The fourth proportional to 405,411.80, 559,618.62 and 244,275.80 is: 337,191.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,411.80 : 559,618.62 = 244,275.80 : x
  2. Step 2: Convert to fraction form
    405,411.80/559,618.62 = 244,275.80/x
  3. Step 3: Cross multiply
    405,411.80x = 559,618.62 × 244,275.80
  4. Step 4: Simplify right side
    405,411.80x = 136,701,286,095.40
  5. Step 5: Solve for x
    x = 136,701,286,095.40/405,411.80
  6. Step 6: Final answer
    x = 337,191.19

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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.