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Finding the Fourth Proportional to 1,055.58, 1,582.98 and 362.06

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Solution

The fourth proportional to 1,055.58, 1,582.98 and 362.06 is: 542.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,055.58 : 1,582.98 = 362.06 : x
  2. Step 2: Convert to fraction form
    1,055.58/1,582.98 = 362.06/x
  3. Step 3: Cross multiply
    1,055.58x = 1,582.98 × 362.06
  4. Step 4: Simplify right side
    1,055.58x = 573,125.82
  5. Step 5: Solve for x
    x = 573,125.82/1,055.58
  6. Step 6: Final answer
    x = 542.95

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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.