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Finding the Fourth Proportional to 355,998.80, 497,465.20 and 355,998.80

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Solution

The fourth proportional to 355,998.80, 497,465.20 and 355,998.80 is: 497,465.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,998.80 : 497,465.20 = 355,998.80 : x
  2. Step 2: Convert to fraction form
    355,998.80/497,465.20 = 355,998.80/x
  3. Step 3: Cross multiply
    355,998.80x = 497,465.20 × 355,998.80
  4. Step 4: Simplify right side
    355,998.80x = 177,097,014,241.76
  5. Step 5: Solve for x
    x = 177,097,014,241.76/355,998.80
  6. Step 6: Final answer
    x = 497,465.20

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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.