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Finding the Fourth Proportional to 676,168.77, 933,175.50 and 374,362.77

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Solution

The fourth proportional to 676,168.77, 933,175.50 and 374,362.77 is: 516,655.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    676,168.77 : 933,175.50 = 374,362.77 : x
  2. Step 2: Convert to fraction form
    676,168.77/933,175.50 = 374,362.77/x
  3. Step 3: Cross multiply
    676,168.77x = 933,175.50 × 374,362.77
  4. Step 4: Simplify right side
    676,168.77x = 349,346,158,538.44
  5. Step 5: Solve for x
    x = 349,346,158,538.44/676,168.77
  6. Step 6: Final answer
    x = 516,655.27

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Half scale
Find fourth proportional to 1,352,337.53, 1,866,350.99 and 748,725.53
Double scale
Find fourth proportional to 676,169.77, 933,176.88 and 374,363.77
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.