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Finding the Fourth Proportional to 436,406.56, 602,188.16 and 242,768.51

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Solution

The fourth proportional to 436,406.56, 602,188.16 and 242,768.51 is: 334,991.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,406.56 : 602,188.16 = 242,768.51 : x
  2. Step 2: Convert to fraction form
    436,406.56/602,188.16 = 242,768.51/x
  3. Step 3: Cross multiply
    436,406.56x = 602,188.16 × 242,768.51
  4. Step 4: Simplify right side
    436,406.56x = 146,192,322,342.84
  5. Step 5: Solve for x
    x = 146,192,322,342.84/436,406.56
  6. Step 6: Final answer
    x = 334,991.12

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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.