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Finding the Fourth Proportional to 1,454.76, 2,006.64 and 930.96

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Solution

The fourth proportional to 1,454.76, 2,006.64 and 930.96 is: 1,284.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,454.76 : 2,006.64 = 930.96 : x
  2. Step 2: Convert to fraction form
    1,454.76/2,006.64 = 930.96/x
  3. Step 3: Cross multiply
    1,454.76x = 2,006.64 × 930.96
  4. Step 4: Simplify right side
    1,454.76x = 1,868,101.57
  5. Step 5: Solve for x
    x = 1,868,101.57/1,454.76
  6. Step 6: Final answer
    x = 1,284.13

Related Problems

Find fourth proportional to 727.38, 1,003.32 and 465.48
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.