Home / 699,146.82-964,981.89-494,985.51

Finding the Fourth Proportional to 699,146.82, 964,981.89 and 494,985.51

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Solution

The fourth proportional to 699,146.82, 964,981.89 and 494,985.51 is: 683,192.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    699,146.82 : 964,981.89 = 494,985.51 : x
  2. Step 2: Convert to fraction form
    699,146.82/964,981.89 = 494,985.51/x
  3. Step 3: Cross multiply
    699,146.82x = 964,981.89 × 494,985.51
  4. Step 4: Simplify right side
    699,146.82x = 477,652,052,962.41
  5. Step 5: Solve for x
    x = 477,652,052,962.41/699,146.82
  6. Step 6: Final answer
    x = 683,192.77

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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.