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Finding the Fourth Proportional to 657,078.40, 985,617.60 and 183,800.80

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Solution

The fourth proportional to 657,078.40, 985,617.60 and 183,800.80 is: 275,701.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,078.40 : 985,617.60 = 183,800.80 : x
  2. Step 2: Convert to fraction form
    657,078.40/985,617.60 = 183,800.80/x
  3. Step 3: Cross multiply
    657,078.40x = 985,617.60 × 183,800.80
  4. Step 4: Simplify right side
    657,078.40x = 181,157,303,374.08
  5. Step 5: Solve for x
    x = 181,157,303,374.08/657,078.40
  6. Step 6: Final answer
    x = 275,701.20

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Similar ratio
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1.5x scale

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.