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Finding the Fourth Proportional to 529,019.16, 730,269.81 and 357,169.92

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Solution

The fourth proportional to 529,019.16, 730,269.81 and 357,169.92 is: 493,045.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,019.16 : 730,269.81 = 357,169.92 : x
  2. Step 2: Convert to fraction form
    529,019.16/730,269.81 = 357,169.92/x
  3. Step 3: Cross multiply
    529,019.16x = 730,269.81 × 357,169.92
  4. Step 4: Simplify right side
    529,019.16x = 260,830,409,616.12
  5. Step 5: Solve for x
    x = 260,830,409,616.12/529,019.16
  6. Step 6: Final answer
    x = 493,045.30

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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.