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Finding the Fourth Proportional to 674,816.76, 930,610.62 and 433,173.24

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Solution

The fourth proportional to 674,816.76, 930,610.62 and 433,173.24 is: 597,370.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,816.76 : 930,610.62 = 433,173.24 : x
  2. Step 2: Convert to fraction form
    674,816.76/930,610.62 = 433,173.24/x
  3. Step 3: Cross multiply
    674,816.76x = 930,610.62 × 433,173.24
  4. Step 4: Simplify right side
    674,816.76x = 403,115,617,443.81
  5. Step 5: Solve for x
    x = 403,115,617,443.81/674,816.76
  6. Step 6: Final answer
    x = 597,370.49

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Half scale
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Double scale
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Similar ratio
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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.