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Finding the Fourth Proportional to 504,158.72, 695,730 and 274,718

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Solution

The fourth proportional to 504,158.72, 695,730 and 274,718 is: 379,105.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,158.72 : 695,730 = 274,718 : x
  2. Step 2: Convert to fraction form
    504,158.72/695,730 = 274,718/x
  3. Step 3: Cross multiply
    504,158.72x = 695,730 × 274,718
  4. Step 4: Simplify right side
    504,158.72x = 191,129,554,140
  5. Step 5: Solve for x
    x = 191,129,554,140/504,158.72
  6. Step 6: Final answer
    x = 379,105.92

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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.