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Finding the Fourth Proportional to 995,266,223.25, 1,373,467,978.98 and 555,233,075.25

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Solution

The fourth proportional to 995,266,223.25, 1,373,467,978.98 and 555,233,075.25 is: 766,221,973.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    995,266,223.25 : 1,373,467,978.98 = 555,233,075.25 : x
  2. Step 2: Convert to fraction form
    995,266,223.25/1,373,467,978.98 = 555,233,075.25/x
  3. Step 3: Cross multiply
    995,266,223.25x = 1,373,467,978.98 × 555,233,075.25
  4. Step 4: Simplify right side
    995,266,223.25x = 762,594,849,726,467,712
  5. Step 5: Solve for x
    x = 762,594,849,726,467,712/995,266,223.25
  6. Step 6: Final answer
    x = 766,221,973.49

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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.