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Finding the Fourth Proportional to 583,729.72, 805,240.56 and 474,955.72

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Solution

The fourth proportional to 583,729.72, 805,240.56 and 474,955.72 is: 655,189.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    583,729.72 : 805,240.56 = 474,955.72 : x
  2. Step 2: Convert to fraction form
    583,729.72/805,240.56 = 474,955.72/x
  3. Step 3: Cross multiply
    583,729.72x = 805,240.56 × 474,955.72
  4. Step 4: Simplify right side
    583,729.72x = 382,453,609,948.00
  5. Step 5: Solve for x
    x = 382,453,609,948.00/583,729.72
  6. Step 6: Final answer
    x = 655,189.55

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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.