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Finding the Fourth Proportional to 703,348,749.36, 969,729,262.20 and 502,645,342.32

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Solution

The fourth proportional to 703,348,749.36, 969,729,262.20 and 502,645,342.32 is: 693,013,099.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,348,749.36 : 969,729,262.20 = 502,645,342.32 : x
  2. Step 2: Convert to fraction form
    703,348,749.36/969,729,262.20 = 502,645,342.32/x
  3. Step 3: Cross multiply
    703,348,749.36x = 969,729,262.20 × 502,645,342.32
  4. Step 4: Simplify right side
    703,348,749.36x = 487,429,896,956,240,064
  5. Step 5: Solve for x
    x = 487,429,896,956,240,064/703,348,749.36
  6. Step 6: Final answer
    x = 693,013,099.69

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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.