Home / 705,413.40-1,056,564.90-612,101.40

Finding the Fourth Proportional to 705,413.40, 1,056,564.90 and 612,101.40

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Solution

The fourth proportional to 705,413.40, 1,056,564.90 and 612,101.40 is: 916,802.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    705,413.40 : 1,056,564.90 = 612,101.40 : x
  2. Step 2: Convert to fraction form
    705,413.40/1,056,564.90 = 612,101.40/x
  3. Step 3: Cross multiply
    705,413.40x = 1,056,564.90 × 612,101.40
  4. Step 4: Simplify right side
    705,413.40x = 646,724,854,480.86
  5. Step 5: Solve for x
    x = 646,724,854,480.86/705,413.40
  6. Step 6: Final answer
    x = 916,802.62

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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.