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Finding the Fourth Proportional to 662,603.60, 993,905.40 and 475,979.60

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Solution

The fourth proportional to 662,603.60, 993,905.40 and 475,979.60 is: 713,969.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,603.60 : 993,905.40 = 475,979.60 : x
  2. Step 2: Convert to fraction form
    662,603.60/993,905.40 = 475,979.60/x
  3. Step 3: Cross multiply
    662,603.60x = 993,905.40 × 475,979.60
  4. Step 4: Simplify right side
    662,603.60x = 473,078,694,729.84
  5. Step 5: Solve for x
    x = 473,078,694,729.84/662,603.60
  6. Step 6: Final answer
    x = 713,969.40

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Half scale
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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.