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Finding the Fourth Proportional to 1,053.46, 1,580.10 and 283.96

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Solution

The fourth proportional to 1,053.46, 1,580.10 and 283.96 is: 425.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,053.46 : 1,580.10 = 283.96 : x
  2. Step 2: Convert to fraction form
    1,053.46/1,580.10 = 283.96/x
  3. Step 3: Cross multiply
    1,053.46x = 1,580.10 × 283.96
  4. Step 4: Simplify right side
    1,053.46x = 448,685.20
  5. Step 5: Solve for x
    x = 448,685.20/1,053.46
  6. Step 6: Final answer
    x = 425.92

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.