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Finding the Fourth Proportional to 289,334.81, 399,217.46 and 174,632.06

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Solution

The fourth proportional to 289,334.81, 399,217.46 and 174,632.06 is: 240,953.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,334.81 : 399,217.46 = 174,632.06 : x
  2. Step 2: Convert to fraction form
    289,334.81/399,217.46 = 174,632.06/x
  3. Step 3: Cross multiply
    289,334.81x = 399,217.46 × 174,632.06
  4. Step 4: Simplify right side
    289,334.81x = 69,716,164,558.52
  5. Step 5: Solve for x
    x = 69,716,164,558.52/289,334.81
  6. Step 6: Final answer
    x = 240,953.26

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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.