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Finding the Fourth Proportional to 935,914.08, 1,404,018 and 403,586.40

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Solution

The fourth proportional to 935,914.08, 1,404,018 and 403,586.40 is: 605,442.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    935,914.08 : 1,404,018 = 403,586.40 : x
  2. Step 2: Convert to fraction form
    935,914.08/1,404,018 = 403,586.40/x
  3. Step 3: Cross multiply
    935,914.08x = 1,404,018 × 403,586.40
  4. Step 4: Simplify right side
    935,914.08x = 566,642,570,155.20
  5. Step 5: Solve for x
    x = 566,642,570,155.20/935,914.08
  6. Step 6: Final answer
    x = 605,442.94

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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.