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Finding the Fourth Proportional to 1,178.04, 1,624.37 and 752.10

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Solution

The fourth proportional to 1,178.04, 1,624.37 and 752.10 is: 1,037.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,178.04 : 1,624.37 = 752.10 : x
  2. Step 2: Convert to fraction form
    1,178.04/1,624.37 = 752.10/x
  3. Step 3: Cross multiply
    1,178.04x = 1,624.37 × 752.10
  4. Step 4: Simplify right side
    1,178.04x = 1,221,684.92
  5. Step 5: Solve for x
    x = 1,221,684.92/1,178.04
  6. Step 6: Final answer
    x = 1,037.05

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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.