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Finding the Fourth Proportional to 398,063.37, 549,238.55 and 333,792.57

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Solution

The fourth proportional to 398,063.37, 549,238.55 and 333,792.57 is: 460,559.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,063.37 : 549,238.55 = 333,792.57 : x
  2. Step 2: Convert to fraction form
    398,063.37/549,238.55 = 333,792.57/x
  3. Step 3: Cross multiply
    398,063.37x = 549,238.55 × 333,792.57
  4. Step 4: Simplify right side
    398,063.37x = 183,331,745,478.61
  5. Step 5: Solve for x
    x = 183,331,745,478.61/398,063.37
  6. Step 6: Final answer
    x = 460,559.20

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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.