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Finding the Fourth Proportional to 569,753,998.80, 854,630,998.20 and 519,869,403.60

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Solution

The fourth proportional to 569,753,998.80, 854,630,998.20 and 519,869,403.60 is: 779,804,105.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    569,753,998.80 : 854,630,998.20 = 519,869,403.60 : x
  2. Step 2: Convert to fraction form
    569,753,998.80/854,630,998.20 = 519,869,403.60/x
  3. Step 3: Cross multiply
    569,753,998.80x = 854,630,998.20 × 519,869,403.60
  4. Step 4: Simplify right side
    569,753,998.80x = 444,296,507,332,306,688
  5. Step 5: Solve for x
    x = 444,296,507,332,306,688/569,753,998.80
  6. Step 6: Final answer
    x = 779,804,105.40

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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.