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Finding the Fourth Proportional to 1,366.76, 1,885.53 and 924.50

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Solution

The fourth proportional to 1,366.76, 1,885.53 and 924.50 is: 1,275.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,366.76 : 1,885.53 = 924.50 : x
  2. Step 2: Convert to fraction form
    1,366.76/1,885.53 = 924.50/x
  3. Step 3: Cross multiply
    1,366.76x = 1,885.53 × 924.50
  4. Step 4: Simplify right side
    1,366.76x = 1,743,172.49
  5. Step 5: Solve for x
    x = 1,743,172.49/1,366.76
  6. Step 6: Final answer
    x = 1,275.40

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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.