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Finding the Fourth Proportional to 910,661.03, 1,366,057.56 and 349,695.53

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Solution

The fourth proportional to 910,661.03, 1,366,057.56 and 349,695.53 is: 524,568.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    910,661.03 : 1,366,057.56 = 349,695.53 : x
  2. Step 2: Convert to fraction form
    910,661.03/1,366,057.56 = 349,695.53/x
  3. Step 3: Cross multiply
    910,661.03x = 1,366,057.56 × 349,695.53
  4. Step 4: Simplify right side
    910,661.03x = 477,704,222,454.71
  5. Step 5: Solve for x
    x = 477,704,222,454.71/910,661.03
  6. Step 6: Final answer
    x = 524,568.64

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.