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Finding the Fourth Proportional to 373,646.92, 515,644.12 and 212,525.16

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Solution

The fourth proportional to 373,646.92, 515,644.12 and 212,525.16 is: 293,291.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,646.92 : 515,644.12 = 212,525.16 : x
  2. Step 2: Convert to fraction form
    373,646.92/515,644.12 = 212,525.16/x
  3. Step 3: Cross multiply
    373,646.92x = 515,644.12 × 212,525.16
  4. Step 4: Simplify right side
    373,646.92x = 109,587,349,106.06
  5. Step 5: Solve for x
    x = 109,587,349,106.06/373,646.92
  6. Step 6: Final answer
    x = 293,291.19

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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.