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Finding the Fourth Proportional to 807,003,237.60, 1,208,591,668.80 and 807,003,237.60

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Solution

The fourth proportional to 807,003,237.60, 1,208,591,668.80 and 807,003,237.60 is: 1,208,591,668.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    807,003,237.60 : 1,208,591,668.80 = 807,003,237.60 : x
  2. Step 2: Convert to fraction form
    807,003,237.60/1,208,591,668.80 = 807,003,237.60/x
  3. Step 3: Cross multiply
    807,003,237.60x = 1,208,591,668.80 × 807,003,237.60
  4. Step 4: Simplify right side
    807,003,237.60x = 975,337,389,657,986,944
  5. Step 5: Solve for x
    x = 975,337,389,657,986,944/807,003,237.60
  6. Step 6: Final answer
    x = 1,208,591,668.80

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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.