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Finding the Fourth Proportional to 465,423.96, 642,287.64 and 261,483.48

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Solution

The fourth proportional to 465,423.96, 642,287.64 and 261,483.48 is: 360,848.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    465,423.96 : 642,287.64 = 261,483.48 : x
  2. Step 2: Convert to fraction form
    465,423.96/642,287.64 = 261,483.48/x
  3. Step 3: Cross multiply
    465,423.96x = 642,287.64 × 261,483.48
  4. Step 4: Simplify right side
    465,423.96x = 167,947,607,268.19
  5. Step 5: Solve for x
    x = 167,947,607,268.19/465,423.96
  6. Step 6: Final answer
    x = 360,848.65

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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.