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Finding the Fourth Proportional to 1,699.84, 2,345.96 and 1,036.76

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Solution

The fourth proportional to 1,699.84, 2,345.96 and 1,036.76 is: 1,430.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,699.84 : 2,345.96 = 1,036.76 : x
  2. Step 2: Convert to fraction form
    1,699.84/2,345.96 = 1,036.76/x
  3. Step 3: Cross multiply
    1,699.84x = 2,345.96 × 1,036.76
  4. Step 4: Simplify right side
    1,699.84x = 2,432,197.49
  5. Step 5: Solve for x
    x = 2,432,197.49/1,699.84
  6. Step 6: Final answer
    x = 1,430.84

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Half scale
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Double scale
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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.