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Finding the Fourth Proportional to 386,465.60, 541,604.80 and 386,465.60

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Solution

The fourth proportional to 386,465.60, 541,604.80 and 386,465.60 is: 541,604.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,465.60 : 541,604.80 = 386,465.60 : x
  2. Step 2: Convert to fraction form
    386,465.60/541,604.80 = 386,465.60/x
  3. Step 3: Cross multiply
    386,465.60x = 541,604.80 × 386,465.60
  4. Step 4: Simplify right side
    386,465.60x = 209,311,623,994.88
  5. Step 5: Solve for x
    x = 209,311,623,994.88/386,465.60
  6. Step 6: Final answer
    x = 541,604.80

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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.