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Finding the Fourth Proportional to 1,266,334,802.98, 1,747,542,193.81 and 701,856,128.39

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Solution

The fourth proportional to 1,266,334,802.98, 1,747,542,193.81 and 701,856,128.39 is: 968,561,549.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,266,334,802.98 : 1,747,542,193.81 = 701,856,128.39 : x
  2. Step 2: Convert to fraction form
    1,266,334,802.98/1,747,542,193.81 = 701,856,128.39/x
  3. Step 3: Cross multiply
    1,266,334,802.98x = 1,747,542,193.81 × 701,856,128.39
  4. Step 4: Simplify right side
    1,266,334,802.98x = 1,226,523,198,348,877,824
  5. Step 5: Solve for x
    x = 1,226,523,198,348,877,824/1,266,334,802.98
  6. Step 6: Final answer
    x = 968,561,549.01

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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.