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Finding the Fourth Proportional to 508,413.16, 761,690.26 and 238,045.29

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Solution

The fourth proportional to 508,413.16, 761,690.26 and 238,045.29 is: 356,632.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,413.16 : 761,690.26 = 238,045.29 : x
  2. Step 2: Convert to fraction form
    508,413.16/761,690.26 = 238,045.29/x
  3. Step 3: Cross multiply
    508,413.16x = 761,690.26 × 238,045.29
  4. Step 4: Simplify right side
    508,413.16x = 181,316,778,831.88
  5. Step 5: Solve for x
    x = 181,316,778,831.88/508,413.16
  6. Step 6: Final answer
    x = 356,632.74

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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.