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Finding the Fourth Proportional to 583,078.03, 804,616.64 and 328,412.81

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Solution

The fourth proportional to 583,078.03, 804,616.64 and 328,412.81 is: 453,192.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    583,078.03 : 804,616.64 = 328,412.81 : x
  2. Step 2: Convert to fraction form
    583,078.03/804,616.64 = 328,412.81/x
  3. Step 3: Cross multiply
    583,078.03x = 804,616.64 × 328,412.81
  4. Step 4: Simplify right side
    583,078.03x = 264,246,413,316.18
  5. Step 5: Solve for x
    x = 264,246,413,316.18/583,078.03
  6. Step 6: Final answer
    x = 453,192.20

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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.