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Finding the Fourth Proportional to 395,661.03, 545,950.53 and 234,490.06

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Solution

The fourth proportional to 395,661.03, 545,950.53 and 234,490.06 is: 323,559.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,661.03 : 545,950.53 = 234,490.06 : x
  2. Step 2: Convert to fraction form
    395,661.03/545,950.53 = 234,490.06/x
  3. Step 3: Cross multiply
    395,661.03x = 545,950.53 × 234,490.06
  4. Step 4: Simplify right side
    395,661.03x = 128,019,972,536.73
  5. Step 5: Solve for x
    x = 128,019,972,536.73/395,661.03
  6. Step 6: Final answer
    x = 323,559.72

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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.