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Finding the Third Proportional to 811,692,939.50 and 1,254,814,168

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Solution

The third proportional to 811,692,939.50 and 1,254,814,168 is: 1,939,845,130.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,692,939.50 : 1,254,814,168 = 1,254,814,168 : x
  2. Step 2: Convert to fraction form
    811,692,939.50/1,254,814,168 = 1,254,814,168/x
  3. Step 3: Cross multiply
    811,692,939.50x = 1,254,814,168 × 1,254,814,168
  4. Step 4: Simplify right side
    811,692,939.50x = 1,574,558,596,213,532,160
  5. Step 5: Solve for x
    x = 1,574,558,596,213,532,160/811,692,939.50
  6. Step 6: Final answer
    x = 1,939,845,130.58

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.