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Finding the Fourth Proportional to 328,035.60, 492,053.40 and 324,925.20

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Solution

The fourth proportional to 328,035.60, 492,053.40 and 324,925.20 is: 487,387.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,035.60 : 492,053.40 = 324,925.20 : x
  2. Step 2: Convert to fraction form
    328,035.60/492,053.40 = 324,925.20/x
  3. Step 3: Cross multiply
    328,035.60x = 492,053.40 × 324,925.20
  4. Step 4: Simplify right side
    328,035.60x = 159,880,549,405.68
  5. Step 5: Solve for x
    x = 159,880,549,405.68/328,035.60
  6. Step 6: Final answer
    x = 487,387.80

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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.