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Finding the Fourth Proportional to 343,681.98, 474,280.11 and 190,743.21

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Solution

The fourth proportional to 343,681.98, 474,280.11 and 190,743.21 is: 263,225.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,681.98 : 474,280.11 = 190,743.21 : x
  2. Step 2: Convert to fraction form
    343,681.98/474,280.11 = 190,743.21/x
  3. Step 3: Cross multiply
    343,681.98x = 474,280.11 × 190,743.21
  4. Step 4: Simplify right side
    343,681.98x = 90,465,710,620.55
  5. Step 5: Solve for x
    x = 90,465,710,620.55/343,681.98
  6. Step 6: Final answer
    x = 263,225.06

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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.