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Finding the Fourth Proportional to 356,925.32, 492,555.56 and 220,932.16

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Solution

The fourth proportional to 356,925.32, 492,555.56 and 220,932.16 is: 304,885.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,925.32 : 492,555.56 = 220,932.16 : x
  2. Step 2: Convert to fraction form
    356,925.32/492,555.56 = 220,932.16/x
  3. Step 3: Cross multiply
    356,925.32x = 492,555.56 × 220,932.16
  4. Step 4: Simplify right side
    356,925.32x = 108,821,363,790.81
  5. Step 5: Solve for x
    x = 108,821,363,790.81/356,925.32
  6. Step 6: Final answer
    x = 304,885.53

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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.