Home / 839,939.76-1,159,091.64-457,974

Finding the Fourth Proportional to 839,939.76, 1,159,091.64 and 457,974

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Solution

The fourth proportional to 839,939.76, 1,159,091.64 and 457,974 is: 631,990.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,939.76 : 1,159,091.64 = 457,974 : x
  2. Step 2: Convert to fraction form
    839,939.76/1,159,091.64 = 457,974/x
  3. Step 3: Cross multiply
    839,939.76x = 1,159,091.64 × 457,974
  4. Step 4: Simplify right side
    839,939.76x = 530,833,834,737.36
  5. Step 5: Solve for x
    x = 530,833,834,737.36/839,939.76
  6. Step 6: Final answer
    x = 631,990.36

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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.