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Finding the Fourth Proportional to 696,413.05, 960,641.81 and 437,880.26

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Solution

The fourth proportional to 696,413.05, 960,641.81 and 437,880.26 is: 604,018.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    696,413.05 : 960,641.81 = 437,880.26 : x
  2. Step 2: Convert to fraction form
    696,413.05/960,641.81 = 437,880.26/x
  3. Step 3: Cross multiply
    696,413.05x = 960,641.81 × 437,880.26
  4. Step 4: Simplify right side
    696,413.05x = 420,646,085,529.67
  5. Step 5: Solve for x
    x = 420,646,085,529.67/696,413.05
  6. Step 6: Final answer
    x = 604,018.10

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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.