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Finding the Fourth Proportional to 395,425.55, 592,738.93 and 155,707.67

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Solution

The fourth proportional to 395,425.55, 592,738.93 and 155,707.67 is: 233,404.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,425.55 : 592,738.93 = 155,707.67 : x
  2. Step 2: Convert to fraction form
    395,425.55/592,738.93 = 155,707.67/x
  3. Step 3: Cross multiply
    395,425.55x = 592,738.93 × 155,707.67
  4. Step 4: Simplify right side
    395,425.55x = 92,293,997,319.32
  5. Step 5: Solve for x
    x = 92,293,997,319.32/395,425.55
  6. Step 6: Final answer
    x = 233,404.23

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.