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Finding the Fourth Proportional to 1,045.86, 1,568.64 and 352.98

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Solution

The fourth proportional to 1,045.86, 1,568.64 and 352.98 is: 529.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,045.86 : 1,568.64 = 352.98 : x
  2. Step 2: Convert to fraction form
    1,045.86/1,568.64 = 352.98/x
  3. Step 3: Cross multiply
    1,045.86x = 1,568.64 × 352.98
  4. Step 4: Simplify right side
    1,045.86x = 553,698.55
  5. Step 5: Solve for x
    x = 553,698.55/1,045.86
  6. Step 6: Final answer
    x = 529.42

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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.