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Finding the Fourth Proportional to 343,355.46, 473,831.56 and 190,404.42

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Solution

The fourth proportional to 343,355.46, 473,831.56 and 190,404.42 is: 262,758.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,355.46 : 473,831.56 = 190,404.42 : x
  2. Step 2: Convert to fraction form
    343,355.46/473,831.56 = 190,404.42/x
  3. Step 3: Cross multiply
    343,355.46x = 473,831.56 × 190,404.42
  4. Step 4: Simplify right side
    343,355.46x = 90,219,623,359.50
  5. Step 5: Solve for x
    x = 90,219,623,359.50/343,355.46
  6. Step 6: Final answer
    x = 262,758.67

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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.