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Finding the Fourth Proportional to 468,338.55, 646,311.92 and 253,483.21

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Solution

The fourth proportional to 468,338.55, 646,311.92 and 253,483.21 is: 349,809.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,338.55 : 646,311.92 = 253,483.21 : x
  2. Step 2: Convert to fraction form
    468,338.55/646,311.92 = 253,483.21/x
  3. Step 3: Cross multiply
    468,338.55x = 646,311.92 × 253,483.21
  4. Step 4: Simplify right side
    468,338.55x = 163,829,220,142.86
  5. Step 5: Solve for x
    x = 163,829,220,142.86/468,338.55
  6. Step 6: Final answer
    x = 349,809.38

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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.