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Finding the Fourth Proportional to 343,781.61, 474,411.24 and 190,810.86

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Solution

The fourth proportional to 343,781.61, 474,411.24 and 190,810.86 is: 263,314.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,781.61 : 474,411.24 = 190,810.86 : x
  2. Step 2: Convert to fraction form
    343,781.61/474,411.24 = 190,810.86/x
  3. Step 3: Cross multiply
    343,781.61x = 474,411.24 × 190,810.86
  4. Step 4: Simplify right side
    343,781.61x = 90,522,816,698.07
  5. Step 5: Solve for x
    x = 90,522,816,698.07/343,781.61
  6. Step 6: Final answer
    x = 263,314.89

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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.