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Finding the Fourth Proportional to 657,200.40, 985,800.60 and 624,723.45

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Solution

The fourth proportional to 657,200.40, 985,800.60 and 624,723.45 is: 937,085.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,200.40 : 985,800.60 = 624,723.45 : x
  2. Step 2: Convert to fraction form
    657,200.40/985,800.60 = 624,723.45/x
  3. Step 3: Cross multiply
    657,200.40x = 985,800.60 × 624,723.45
  4. Step 4: Simplify right side
    657,200.40x = 615,852,751,844.07
  5. Step 5: Solve for x
    x = 615,852,751,844.07/657,200.40
  6. Step 6: Final answer
    x = 937,085.18

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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.