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Finding the Fourth Proportional to 357,831.81, 493,801.52 and 196,686.90

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Solution

The fourth proportional to 357,831.81, 493,801.52 and 196,686.90 is: 271,424.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,831.81 : 493,801.52 = 196,686.90 : x
  2. Step 2: Convert to fraction form
    357,831.81/493,801.52 = 196,686.90/x
  3. Step 3: Cross multiply
    357,831.81x = 493,801.52 × 196,686.90
  4. Step 4: Simplify right side
    357,831.81x = 97,124,289,200.65
  5. Step 5: Solve for x
    x = 97,124,289,200.65/357,831.81
  6. Step 6: Final answer
    x = 271,424.41

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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.