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Finding the Fourth Proportional to 1,070.48, 1,477.25 and 598.39

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Solution

The fourth proportional to 1,070.48, 1,477.25 and 598.39 is: 825.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,070.48 : 1,477.25 = 598.39 : x
  2. Step 2: Convert to fraction form
    1,070.48/1,477.25 = 598.39/x
  3. Step 3: Cross multiply
    1,070.48x = 1,477.25 × 598.39
  4. Step 4: Simplify right side
    1,070.48x = 883,971.63
  5. Step 5: Solve for x
    x = 883,971.63/1,070.48
  6. Step 6: Final answer
    x = 825.77

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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.