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Finding the Fourth Proportional to 564,863.44, 779,747.16 and 403,783.60

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Solution

The fourth proportional to 564,863.44, 779,747.16 and 403,783.60 is: 557,389.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    564,863.44 : 779,747.16 = 403,783.60 : x
  2. Step 2: Convert to fraction form
    564,863.44/779,747.16 = 403,783.60/x
  3. Step 3: Cross multiply
    564,863.44x = 779,747.16 × 403,783.60
  4. Step 4: Simplify right side
    564,863.44x = 314,849,115,354.58
  5. Step 5: Solve for x
    x = 314,849,115,354.58/564,863.44
  6. Step 6: Final answer
    x = 557,389.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.