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Finding the Fourth Proportional to 877,673.60, 1,315,452 and 403,709.12

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Solution

The fourth proportional to 877,673.60, 1,315,452 and 403,709.12 is: 605,076.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,673.60 : 1,315,452 = 403,709.12 : x
  2. Step 2: Convert to fraction form
    877,673.60/1,315,452 = 403,709.12/x
  3. Step 3: Cross multiply
    877,673.60x = 1,315,452 × 403,709.12
  4. Step 4: Simplify right side
    877,673.60x = 531,059,969,322.24
  5. Step 5: Solve for x
    x = 531,059,969,322.24/877,673.60
  6. Step 6: Final answer
    x = 605,076.84

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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.