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Finding the Fourth Proportional to 653,587.80, 980,187.30 and 253,998.60

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Solution

The fourth proportional to 653,587.80, 980,187.30 and 253,998.60 is: 380,922.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    653,587.80 : 980,187.30 = 253,998.60 : x
  2. Step 2: Convert to fraction form
    653,587.80/980,187.30 = 253,998.60/x
  3. Step 3: Cross multiply
    653,587.80x = 980,187.30 × 253,998.60
  4. Step 4: Simplify right side
    653,587.80x = 248,966,201,937.78
  5. Step 5: Solve for x
    x = 248,966,201,937.78/653,587.80
  6. Step 6: Final answer
    x = 380,922.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.