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Finding the Fourth Proportional to 872,594.64, 1,308,908.16 and 273,542.40

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Solution

The fourth proportional to 872,594.64, 1,308,908.16 and 273,542.40 is: 410,318.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    872,594.64 : 1,308,908.16 = 273,542.40 : x
  2. Step 2: Convert to fraction form
    872,594.64/1,308,908.16 = 273,542.40/x
  3. Step 3: Cross multiply
    872,594.64x = 1,308,908.16 × 273,542.40
  4. Step 4: Simplify right side
    872,594.64x = 358,041,879,465.98
  5. Step 5: Solve for x
    x = 358,041,879,465.98/872,594.64
  6. Step 6: Final answer
    x = 410,318.68

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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.