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Finding the Fourth Proportional to 566,436.93, 849,654.99 and 388,404.20

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Solution

The fourth proportional to 566,436.93, 849,654.99 and 388,404.20 is: 582,606.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    566,436.93 : 849,654.99 = 388,404.20 : x
  2. Step 2: Convert to fraction form
    566,436.93/849,654.99 = 388,404.20/x
  3. Step 3: Cross multiply
    566,436.93x = 849,654.99 × 388,404.20
  4. Step 4: Simplify right side
    566,436.93x = 330,009,562,418.68
  5. Step 5: Solve for x
    x = 330,009,562,418.68/566,436.93
  6. Step 6: Final answer
    x = 582,606.01

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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.