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Finding the Fourth Proportional to 1,027.08, 1,547.54 and 848.46

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Solution

The fourth proportional to 1,027.08, 1,547.54 and 848.46 is: 1,278.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,027.08 : 1,547.54 = 848.46 : x
  2. Step 2: Convert to fraction form
    1,027.08/1,547.54 = 848.46/x
  3. Step 3: Cross multiply
    1,027.08x = 1,547.54 × 848.46
  4. Step 4: Simplify right side
    1,027.08x = 1,313,021.55
  5. Step 5: Solve for x
    x = 1,313,021.55/1,027.08
  6. Step 6: Final answer
    x = 1,278.40

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.