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Finding the Fourth Proportional to 1,699.98, 2,345.92 and 953.92

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Solution

The fourth proportional to 1,699.98, 2,345.92 and 953.92 is: 1,316.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,699.98 : 2,345.92 = 953.92 : x
  2. Step 2: Convert to fraction form
    1,699.98/2,345.92 = 953.92/x
  3. Step 3: Cross multiply
    1,699.98x = 2,345.92 × 953.92
  4. Step 4: Simplify right side
    1,699.98x = 2,237,820.01
  5. Step 5: Solve for x
    x = 2,237,820.01/1,699.98
  6. Step 6: Final answer
    x = 1,316.38

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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.