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Finding the Fourth Proportional to 583,670.53, 805,477.64 and 329,021.72

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Solution

The fourth proportional to 583,670.53, 805,477.64 and 329,021.72 is: 454,056.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    583,670.53 : 805,477.64 = 329,021.72 : x
  2. Step 2: Convert to fraction form
    583,670.53/805,477.64 = 329,021.72/x
  3. Step 3: Cross multiply
    583,670.53x = 805,477.64 × 329,021.72
  4. Step 4: Simplify right side
    583,670.53x = 265,019,635,882.39
  5. Step 5: Solve for x
    x = 265,019,635,882.39/583,670.53
  6. Step 6: Final answer
    x = 454,056.91

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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.