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Finding the Fourth Proportional to 339,970.48, 469,152.60 and 189,064.24

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Solution

The fourth proportional to 339,970.48, 469,152.60 and 189,064.24 is: 260,904.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,970.48 : 469,152.60 = 189,064.24 : x
  2. Step 2: Convert to fraction form
    339,970.48/469,152.60 = 189,064.24/x
  3. Step 3: Cross multiply
    339,970.48x = 469,152.60 × 189,064.24
  4. Step 4: Simplify right side
    339,970.48x = 88,699,979,763.02
  5. Step 5: Solve for x
    x = 88,699,979,763.02/339,970.48
  6. Step 6: Final answer
    x = 260,904.95

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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.