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Finding the Fourth Proportional to 343,807.30, 474,430.32 and 190,833.46

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Solution

The fourth proportional to 343,807.30, 474,430.32 and 190,833.46 is: 263,336.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,807.30 : 474,430.32 = 190,833.46 : x
  2. Step 2: Convert to fraction form
    343,807.30/474,430.32 = 190,833.46/x
  3. Step 3: Cross multiply
    343,807.30x = 474,430.32 × 190,833.46
  4. Step 4: Simplify right side
    343,807.30x = 90,537,179,494.51
  5. Step 5: Solve for x
    x = 90,537,179,494.51/343,807.30
  6. Step 6: Final answer
    x = 263,336.99

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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.