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Finding the Fourth Proportional to 620,657,478,003.70, 930,986,217,005.55 and 620,657,478,003.70

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Solution

The fourth proportional to 620,657,478,003.70, 930,986,217,005.55 and 620,657,478,003.70 is: 930,986,217,005.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,657,478,003.70 : 930,986,217,005.55 = 620,657,478,003.70 : x
  2. Step 2: Convert to fraction form
    620,657,478,003.70/930,986,217,005.55 = 620,657,478,003.70/x
  3. Step 3: Cross multiply
    620,657,478,003.70x = 930,986,217,005.55 × 620,657,478,003.70
  4. Step 4: Simplify right side
    620,657,478,003.70x = 577,823,557,502,869,987,917,824
  5. Step 5: Solve for x
    x = 577,823,557,502,869,987,917,824/620,657,478,003.70
  6. Step 6: Final answer
    x = 930,986,217,005.55

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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.