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Finding the Fourth Proportional to 1,056.86, 1,585.57 and 536.68

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Solution

The fourth proportional to 1,056.86, 1,585.57 and 536.68 is: 805.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,056.86 : 1,585.57 = 536.68 : x
  2. Step 2: Convert to fraction form
    1,056.86/1,585.57 = 536.68/x
  3. Step 3: Cross multiply
    1,056.86x = 1,585.57 × 536.68
  4. Step 4: Simplify right side
    1,056.86x = 850,943.71
  5. Step 5: Solve for x
    x = 850,943.71/1,056.86
  6. Step 6: Final answer
    x = 805.16

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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.