Home / 429,811.40-644,852.12-177,210.77

Finding the Fourth Proportional to 429,811.40, 644,852.12 and 177,210.77

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Solution

The fourth proportional to 429,811.40, 644,852.12 and 177,210.77 is: 265,871.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    429,811.40 : 644,852.12 = 177,210.77 : x
  2. Step 2: Convert to fraction form
    429,811.40/644,852.12 = 177,210.77/x
  3. Step 3: Cross multiply
    429,811.40x = 644,852.12 × 177,210.77
  4. Step 4: Simplify right side
    429,811.40x = 114,274,736,611.02
  5. Step 5: Solve for x
    x = 114,274,736,611.02/429,811.40
  6. Step 6: Final answer
    x = 265,871.82

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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.