Home / 642,879.64-964,384.26-169,597.72

Finding the Fourth Proportional to 642,879.64, 964,384.26 and 169,597.72

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Solution

The fourth proportional to 642,879.64, 964,384.26 and 169,597.72 is: 254,413.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,879.64 : 964,384.26 = 169,597.72 : x
  2. Step 2: Convert to fraction form
    642,879.64/964,384.26 = 169,597.72/x
  3. Step 3: Cross multiply
    642,879.64x = 964,384.26 × 169,597.72
  4. Step 4: Simplify right side
    642,879.64x = 163,557,371,699.89
  5. Step 5: Solve for x
    x = 163,557,371,699.89/642,879.64
  6. Step 6: Final answer
    x = 254,413.67

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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.