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Finding the Fourth Proportional to 343,653.01, 474,218.34 and 190,681.48

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Solution

The fourth proportional to 343,653.01, 474,218.34 and 190,681.48 is: 263,127.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,653.01 : 474,218.34 = 190,681.48 : x
  2. Step 2: Convert to fraction form
    343,653.01/474,218.34 = 190,681.48/x
  3. Step 3: Cross multiply
    343,653.01x = 474,218.34 × 190,681.48
  4. Step 4: Simplify right side
    343,653.01x = 90,424,654,914.34
  5. Step 5: Solve for x
    x = 90,424,654,914.34/343,653.01
  6. Step 6: Final answer
    x = 263,127.78

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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.