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Finding the Fourth Proportional to 292,395.72, 403,469.46 and 163,303.32

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Solution

The fourth proportional to 292,395.72, 403,469.46 and 163,303.32 is: 225,338.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,395.72 : 403,469.46 = 163,303.32 : x
  2. Step 2: Convert to fraction form
    292,395.72/403,469.46 = 163,303.32/x
  3. Step 3: Cross multiply
    292,395.72x = 403,469.46 × 163,303.32
  4. Step 4: Simplify right side
    292,395.72x = 65,887,902,336.61
  5. Step 5: Solve for x
    x = 65,887,902,336.61/292,395.72
  6. Step 6: Final answer
    x = 225,338.12

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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.