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Finding the Fourth Proportional to 555,085.56, 766,024.34 and 325,646.76

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Solution

The fourth proportional to 555,085.56, 766,024.34 and 325,646.76 is: 449,396.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,085.56 : 766,024.34 = 325,646.76 : x
  2. Step 2: Convert to fraction form
    555,085.56/766,024.34 = 325,646.76/x
  3. Step 3: Cross multiply
    555,085.56x = 766,024.34 × 325,646.76
  4. Step 4: Simplify right side
    555,085.56x = 249,453,341,014.93
  5. Step 5: Solve for x
    x = 249,453,341,014.93/555,085.56
  6. Step 6: Final answer
    x = 449,396.20

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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.