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Finding the Fourth Proportional to 259,628.80, 364,005.20 and 259,628.80

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Solution

The fourth proportional to 259,628.80, 364,005.20 and 259,628.80 is: 364,005.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,628.80 : 364,005.20 = 259,628.80 : x
  2. Step 2: Convert to fraction form
    259,628.80/364,005.20 = 259,628.80/x
  3. Step 3: Cross multiply
    259,628.80x = 364,005.20 × 259,628.80
  4. Step 4: Simplify right side
    259,628.80x = 94,506,233,269.76
  5. Step 5: Solve for x
    x = 94,506,233,269.76/259,628.80
  6. Step 6: Final answer
    x = 364,005.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.