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Finding the Fourth Proportional to 373,501.76, 515,411.70 and 212,334.44

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Solution

The fourth proportional to 373,501.76, 515,411.70 and 212,334.44 is: 293,009.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,501.76 : 515,411.70 = 212,334.44 : x
  2. Step 2: Convert to fraction form
    373,501.76/515,411.70 = 212,334.44/x
  3. Step 3: Cross multiply
    373,501.76x = 515,411.70 × 212,334.44
  4. Step 4: Simplify right side
    373,501.76x = 109,439,654,688.95
  5. Step 5: Solve for x
    x = 109,439,654,688.95/373,501.76
  6. Step 6: Final answer
    x = 293,009.74

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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.