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Finding the Fourth Proportional to 374,298.71, 516,556.71 and 210,995.42

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Solution

The fourth proportional to 374,298.71, 516,556.71 and 210,995.42 is: 291,187.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,298.71 : 516,556.71 = 210,995.42 : x
  2. Step 2: Convert to fraction form
    374,298.71/516,556.71 = 210,995.42/x
  3. Step 3: Cross multiply
    374,298.71x = 516,556.71 × 210,995.42
  4. Step 4: Simplify right side
    374,298.71x = 108,991,097,397.49
  5. Step 5: Solve for x
    x = 108,991,097,397.49/374,298.71
  6. Step 6: Final answer
    x = 291,187.48

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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.