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Finding the Fourth Proportional to 553,920.60, 764,406.54 and 327,561.24

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Solution

The fourth proportional to 553,920.60, 764,406.54 and 327,561.24 is: 452,032.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,920.60 : 764,406.54 = 327,561.24 : x
  2. Step 2: Convert to fraction form
    553,920.60/764,406.54 = 327,561.24/x
  3. Step 3: Cross multiply
    553,920.60x = 764,406.54 × 327,561.24
  4. Step 4: Simplify right side
    553,920.60x = 250,389,954,106.51
  5. Step 5: Solve for x
    x = 250,389,954,106.51/553,920.60
  6. Step 6: Final answer
    x = 452,032.21

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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.