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Finding the Fourth Proportional to 1,036.23, 1,430.10 and 594.21

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Solution

The fourth proportional to 1,036.23, 1,430.10 and 594.21 is: 820.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,036.23 : 1,430.10 = 594.21 : x
  2. Step 2: Convert to fraction form
    1,036.23/1,430.10 = 594.21/x
  3. Step 3: Cross multiply
    1,036.23x = 1,430.10 × 594.21
  4. Step 4: Simplify right side
    1,036.23x = 849,779.72
  5. Step 5: Solve for x
    x = 849,779.72/1,036.23
  6. Step 6: Final answer
    x = 820.07

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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.