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Finding the Fourth Proportional to 1,266,372.93, 1,746,413.90 and 1,172,325.10

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Solution

The fourth proportional to 1,266,372.93, 1,746,413.90 and 1,172,325.10 is: 1,616,715.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,266,372.93 : 1,746,413.90 = 1,172,325.10 : x
  2. Step 2: Convert to fraction form
    1,266,372.93/1,746,413.90 = 1,172,325.10/x
  3. Step 3: Cross multiply
    1,266,372.93x = 1,746,413.90 × 1,172,325.10
  4. Step 4: Simplify right side
    1,266,372.93x = 2,047,364,835,365.20
  5. Step 5: Solve for x
    x = 2,047,364,835,365.20/1,266,372.93
  6. Step 6: Final answer
    x = 1,616,715.57

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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.