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Finding the Fourth Proportional to 608,947.20, 912,643.20 and 468,007.20

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Solution

The fourth proportional to 608,947.20, 912,643.20 and 468,007.20 is: 701,413.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,947.20 : 912,643.20 = 468,007.20 : x
  2. Step 2: Convert to fraction form
    608,947.20/912,643.20 = 468,007.20/x
  3. Step 3: Cross multiply
    608,947.20x = 912,643.20 × 468,007.20
  4. Step 4: Simplify right side
    608,947.20x = 427,123,588,631.04
  5. Step 5: Solve for x
    x = 427,123,588,631.04/608,947.20
  6. Step 6: Final answer
    x = 701,413.17

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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.