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Finding the Fourth Proportional to 345,963.24, 477,429.06 and 186,987.24

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Solution

The fourth proportional to 345,963.24, 477,429.06 and 186,987.24 is: 258,042.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,963.24 : 477,429.06 = 186,987.24 : x
  2. Step 2: Convert to fraction form
    345,963.24/477,429.06 = 186,987.24/x
  3. Step 3: Cross multiply
    345,963.24x = 477,429.06 × 186,987.24
  4. Step 4: Simplify right side
    345,963.24x = 89,273,142,225.19
  5. Step 5: Solve for x
    x = 89,273,142,225.19/345,963.24
  6. Step 6: Final answer
    x = 258,042.28

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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.