Home / 285,413.04-393,951.06-172,243.08

Finding the Fourth Proportional to 285,413.04, 393,951.06 and 172,243.08

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Solution

The fourth proportional to 285,413.04, 393,951.06 and 172,243.08 is: 237,744.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,413.04 : 393,951.06 = 172,243.08 : x
  2. Step 2: Convert to fraction form
    285,413.04/393,951.06 = 172,243.08/x
  3. Step 3: Cross multiply
    285,413.04x = 393,951.06 × 172,243.08
  4. Step 4: Simplify right side
    285,413.04x = 67,855,343,943.66
  5. Step 5: Solve for x
    x = 67,855,343,943.66/285,413.04
  6. Step 6: Final answer
    x = 237,744.37

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1.5x scale

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.