Home / 866,971.80-1,300,068.90-393,413.40

Finding the Fourth Proportional to 866,971.80, 1,300,068.90 and 393,413.40

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Solution

The fourth proportional to 866,971.80, 1,300,068.90 and 393,413.40 is: 589,943.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    866,971.80 : 1,300,068.90 = 393,413.40 : x
  2. Step 2: Convert to fraction form
    866,971.80/1,300,068.90 = 393,413.40/x
  3. Step 3: Cross multiply
    866,971.80x = 1,300,068.90 × 393,413.40
  4. Step 4: Simplify right side
    866,971.80x = 511,464,526,183.26
  5. Step 5: Solve for x
    x = 511,464,526,183.26/866,971.80
  6. Step 6: Final answer
    x = 589,943.67

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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.