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Finding the Fourth Proportional to 1,699.71, 2,345.55 and 1,036.44

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Solution

The fourth proportional to 1,699.71, 2,345.55 and 1,036.44 is: 1,430.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,699.71 : 2,345.55 = 1,036.44 : x
  2. Step 2: Convert to fraction form
    1,699.71/2,345.55 = 1,036.44/x
  3. Step 3: Cross multiply
    1,699.71x = 2,345.55 × 1,036.44
  4. Step 4: Simplify right side
    1,699.71x = 2,431,021.84
  5. Step 5: Solve for x
    x = 2,431,021.84/1,699.71
  6. Step 6: Final answer
    x = 1,430.26

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1.5x scale

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.