Home / 804,041.98-1,109,578.77-477,420.18

Finding the Fourth Proportional to 804,041.98, 1,109,578.77 and 477,420.18

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Solution

The fourth proportional to 804,041.98, 1,109,578.77 and 477,420.18 is: 658,840.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    804,041.98 : 1,109,578.77 = 477,420.18 : x
  2. Step 2: Convert to fraction form
    804,041.98/1,109,578.77 = 477,420.18/x
  3. Step 3: Cross multiply
    804,041.98x = 1,109,578.77 × 477,420.18
  4. Step 4: Simplify right side
    804,041.98x = 529,735,291,936.66
  5. Step 5: Solve for x
    x = 529,735,291,936.66/804,041.98
  6. Step 6: Final answer
    x = 658,840.34

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Half scale
Find fourth proportional to 1,608,083.96, 2,219,157.54 and 954,840.35
Double scale
Find fourth proportional to 804,042.98, 1,109,580.15 and 477,421.18
Similar ratio
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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.