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Finding the Fourth Proportional to 657,477.60, 986,216.40 and 630,905.55

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Solution

The fourth proportional to 657,477.60, 986,216.40 and 630,905.55 is: 946,358.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,477.60 : 986,216.40 = 630,905.55 : x
  2. Step 2: Convert to fraction form
    657,477.60/986,216.40 = 630,905.55/x
  3. Step 3: Cross multiply
    657,477.60x = 986,216.40 × 630,905.55
  4. Step 4: Simplify right side
    657,477.60x = 622,209,400,261.02
  5. Step 5: Solve for x
    x = 622,209,400,261.02/657,477.60
  6. Step 6: Final answer
    x = 946,358.33

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Double scale
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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.