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Finding the Fourth Proportional to 329,737.77, 455,038.20 and 186,494.76

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Solution

The fourth proportional to 329,737.77, 455,038.20 and 186,494.76 is: 257,362.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,737.77 : 455,038.20 = 186,494.76 : x
  2. Step 2: Convert to fraction form
    329,737.77/455,038.20 = 186,494.76/x
  3. Step 3: Cross multiply
    329,737.77x = 455,038.20 × 186,494.76
  4. Step 4: Simplify right side
    329,737.77x = 84,862,239,899.83
  5. Step 5: Solve for x
    x = 84,862,239,899.83/329,737.77
  6. Step 6: Final answer
    x = 257,362.81

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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.