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Finding the Fourth Proportional to 529,718.32, 731,169.28 and 348,569.92

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Solution

The fourth proportional to 529,718.32, 731,169.28 and 348,569.92 is: 481,130.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,718.32 : 731,169.28 = 348,569.92 : x
  2. Step 2: Convert to fraction form
    529,718.32/731,169.28 = 348,569.92/x
  3. Step 3: Cross multiply
    529,718.32x = 731,169.28 × 348,569.92
  4. Step 4: Simplify right side
    529,718.32x = 254,863,617,436.06
  5. Step 5: Solve for x
    x = 254,863,617,436.06/529,718.32
  6. Step 6: Final answer
    x = 481,130.46

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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.