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Finding the Fourth Proportional to 648,218.34, 972,327.51 and 174,903.71

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Solution

The fourth proportional to 648,218.34, 972,327.51 and 174,903.71 is: 262,355.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,218.34 : 972,327.51 = 174,903.71 : x
  2. Step 2: Convert to fraction form
    648,218.34/972,327.51 = 174,903.71/x
  3. Step 3: Cross multiply
    648,218.34x = 972,327.51 × 174,903.71
  4. Step 4: Simplify right side
    648,218.34x = 170,063,683,972.43
  5. Step 5: Solve for x
    x = 170,063,683,972.43/648,218.34
  6. Step 6: Final answer
    x = 262,355.56

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Similar ratio
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1.5x scale

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.