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Finding the Fourth Proportional to 343,957.96, 474,655.38 and 190,988.20

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Solution

The fourth proportional to 343,957.96, 474,655.38 and 190,988.20 is: 263,560.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,957.96 : 474,655.38 = 190,988.20 : x
  2. Step 2: Convert to fraction form
    343,957.96/474,655.38 = 190,988.20/x
  3. Step 3: Cross multiply
    343,957.96x = 474,655.38 × 190,988.20
  4. Step 4: Simplify right side
    343,957.96x = 90,653,576,646.52
  5. Step 5: Solve for x
    x = 90,653,576,646.52/343,957.96
  6. Step 6: Final answer
    x = 263,560.05

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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.