Home / 1,186,276.98-1,637,063.81-642,413.65

Finding the Fourth Proportional to 1,186,276.98, 1,637,063.81 and 642,413.65

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Solution

The fourth proportional to 1,186,276.98, 1,637,063.81 and 642,413.65 is: 886,531.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,186,276.98 : 1,637,063.81 = 642,413.65 : x
  2. Step 2: Convert to fraction form
    1,186,276.98/1,637,063.81 = 642,413.65/x
  3. Step 3: Cross multiply
    1,186,276.98x = 1,637,063.81 × 642,413.65
  4. Step 4: Simplify right side
    1,186,276.98x = 1,051,672,142,705.62
  5. Step 5: Solve for x
    x = 1,051,672,142,705.62/1,186,276.98
  6. Step 6: Final answer
    x = 886,531.69

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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.