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Finding the Fourth Proportional to 664,686.40, 997,029.60 and 592,801.60

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Solution

The fourth proportional to 664,686.40, 997,029.60 and 592,801.60 is: 889,202.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,686.40 : 997,029.60 = 592,801.60 : x
  2. Step 2: Convert to fraction form
    664,686.40/997,029.60 = 592,801.60/x
  3. Step 3: Cross multiply
    664,686.40x = 997,029.60 × 592,801.60
  4. Step 4: Simplify right side
    664,686.40x = 591,040,742,127.36
  5. Step 5: Solve for x
    x = 591,040,742,127.36/664,686.40
  6. Step 6: Final answer
    x = 889,202.40

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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.