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Finding the Fourth Proportional to 352,402.40, 528,603.60 and 346,570.40

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Solution

The fourth proportional to 352,402.40, 528,603.60 and 346,570.40 is: 519,855.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,402.40 : 528,603.60 = 346,570.40 : x
  2. Step 2: Convert to fraction form
    352,402.40/528,603.60 = 346,570.40/x
  3. Step 3: Cross multiply
    352,402.40x = 528,603.60 × 346,570.40
  4. Step 4: Simplify right side
    352,402.40x = 183,198,361,093.44
  5. Step 5: Solve for x
    x = 183,198,361,093.44/352,402.40
  6. Step 6: Final answer
    x = 519,855.60

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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.