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Finding the Fourth Proportional to 632,349.72, 872,674.56 and 374,374.80

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Solution

The fourth proportional to 632,349.72, 872,674.56 and 374,374.80 is: 516,656.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    632,349.72 : 872,674.56 = 374,374.80 : x
  2. Step 2: Convert to fraction form
    632,349.72/872,674.56 = 374,374.80/x
  3. Step 3: Cross multiply
    632,349.72x = 872,674.56 × 374,374.80
  4. Step 4: Simplify right side
    632,349.72x = 326,707,363,865.09
  5. Step 5: Solve for x
    x = 326,707,363,865.09/632,349.72
  6. Step 6: Final answer
    x = 516,656.14

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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.