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Finding the Fourth Proportional to 405,326.48, 559,351.14 and 244,188.32

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Solution

The fourth proportional to 405,326.48, 559,351.14 and 244,188.32 is: 336,980.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,326.48 : 559,351.14 = 244,188.32 : x
  2. Step 2: Convert to fraction form
    405,326.48/559,351.14 = 244,188.32/x
  3. Step 3: Cross multiply
    405,326.48x = 559,351.14 × 244,188.32
  4. Step 4: Simplify right side
    405,326.48x = 136,587,015,166.69
  5. Step 5: Solve for x
    x = 136,587,015,166.69/405,326.48
  6. Step 6: Final answer
    x = 336,980.24

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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.