Home / 839,386.86-1,158,353.91-457,413.54

Finding the Fourth Proportional to 839,386.86, 1,158,353.91 and 457,413.54

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Solution

The fourth proportional to 839,386.86, 1,158,353.91 and 457,413.54 is: 631,230.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,386.86 : 1,158,353.91 = 457,413.54 : x
  2. Step 2: Convert to fraction form
    839,386.86/1,158,353.91 = 457,413.54/x
  3. Step 3: Cross multiply
    839,386.86x = 1,158,353.91 × 457,413.54
  4. Step 4: Simplify right side
    839,386.86x = 529,846,762,545.94
  5. Step 5: Solve for x
    x = 529,846,762,545.94/839,386.86
  6. Step 6: Final answer
    x = 631,230.71

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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.