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Finding the Fourth Proportional to 1,058.78, 1,461.11 and 593.03

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Solution

The fourth proportional to 1,058.78, 1,461.11 and 593.03 is: 818.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,058.78 : 1,461.11 = 593.03 : x
  2. Step 2: Convert to fraction form
    1,058.78/1,461.11 = 593.03/x
  3. Step 3: Cross multiply
    1,058.78x = 1,461.11 × 593.03
  4. Step 4: Simplify right side
    1,058.78x = 866,482.06
  5. Step 5: Solve for x
    x = 866,482.06/1,058.78
  6. Step 6: Final answer
    x = 818.38

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Double scale
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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.