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Finding the Fourth Proportional to 1,307,906,225.88, 1,804,897,415.79 and 713,189,206.86

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Solution

The fourth proportional to 1,307,906,225.88, 1,804,897,415.79 and 713,189,206.86 is: 984,193,920.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,307,906,225.88 : 1,804,897,415.79 = 713,189,206.86 : x
  2. Step 2: Convert to fraction form
    1,307,906,225.88/1,804,897,415.79 = 713,189,206.86/x
  3. Step 3: Cross multiply
    1,307,906,225.88x = 1,804,897,415.79 × 713,189,206.86
  4. Step 4: Simplify right side
    1,307,906,225.88x = 1,287,233,356,430,933,760
  5. Step 5: Solve for x
    x = 1,287,233,356,430,933,760/1,307,906,225.88
  6. Step 6: Final answer
    x = 984,193,920.76

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.