Home / 865,648,413.32-1,295,407,499.34-538,278,087.56

Finding the Fourth Proportional to 865,648,413.32, 1,295,407,499.34 and 538,278,087.56

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Solution

The fourth proportional to 865,648,413.32, 1,295,407,499.34 and 538,278,087.56 is: 805,511,175.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    865,648,413.32 : 1,295,407,499.34 = 538,278,087.56 : x
  2. Step 2: Convert to fraction form
    865,648,413.32/1,295,407,499.34 = 538,278,087.56/x
  3. Step 3: Cross multiply
    865,648,413.32x = 1,295,407,499.34 × 538,278,087.56
  4. Step 4: Simplify right side
    865,648,413.32x = 697,289,471,355,617,024
  5. Step 5: Solve for x
    x = 697,289,471,355,617,024/865,648,413.32
  6. Step 6: Final answer
    x = 805,511,175.93

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1.5x scale

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.