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Finding the Fourth Proportional to 662,110.68, 913,590.68 and 403,928.04

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Solution

The fourth proportional to 662,110.68, 913,590.68 and 403,928.04 is: 557,346.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,110.68 : 913,590.68 = 403,928.04 : x
  2. Step 2: Convert to fraction form
    662,110.68/913,590.68 = 403,928.04/x
  3. Step 3: Cross multiply
    662,110.68x = 913,590.68 × 403,928.04
  4. Step 4: Simplify right side
    662,110.68x = 369,024,892,734.67
  5. Step 5: Solve for x
    x = 369,024,892,734.67/662,110.68
  6. Step 6: Final answer
    x = 557,346.23

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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.