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Finding the Fourth Proportional to 1,293,602,647.60, 1,940,403,971.40 and 360,923,692.60

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Solution

The fourth proportional to 1,293,602,647.60, 1,940,403,971.40 and 360,923,692.60 is: 541,385,538.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,293,602,647.60 : 1,940,403,971.40 = 360,923,692.60 : x
  2. Step 2: Convert to fraction form
    1,293,602,647.60/1,940,403,971.40 = 360,923,692.60/x
  3. Step 3: Cross multiply
    1,293,602,647.60x = 1,940,403,971.40 × 360,923,692.60
  4. Step 4: Simplify right side
    1,293,602,647.60x = 700,337,766,493,392,896
  5. Step 5: Solve for x
    x = 700,337,766,493,392,896/1,293,602,647.60
  6. Step 6: Final answer
    x = 541,385,538.90

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Double scale
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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.