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Finding the Fourth Proportional to 373,145.34, 514,940.76 and 212,000.68

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Solution

The fourth proportional to 373,145.34, 514,940.76 and 212,000.68 is: 292,561.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,145.34 : 514,940.76 = 212,000.68 : x
  2. Step 2: Convert to fraction form
    373,145.34/514,940.76 = 212,000.68/x
  3. Step 3: Cross multiply
    373,145.34x = 514,940.76 × 212,000.68
  4. Step 4: Simplify right side
    373,145.34x = 109,167,791,279.72
  5. Step 5: Solve for x
    x = 109,167,791,279.72/373,145.34
  6. Step 6: Final answer
    x = 292,561.05

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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.