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Finding the Fourth Proportional to 331,336.72, 457,263.88 and 249,518.56

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Solution

The fourth proportional to 331,336.72, 457,263.88 and 249,518.56 is: 344,350.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,336.72 : 457,263.88 = 249,518.56 : x
  2. Step 2: Convert to fraction form
    331,336.72/457,263.88 = 249,518.56/x
  3. Step 3: Cross multiply
    331,336.72x = 457,263.88 × 249,518.56
  4. Step 4: Simplify right side
    331,336.72x = 114,095,824,877.61
  5. Step 5: Solve for x
    x = 114,095,824,877.61/331,336.72
  6. Step 6: Final answer
    x = 344,350.08

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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.