Home / 686,048.40-946,274.34-482,531.04

Finding the Fourth Proportional to 686,048.40, 946,274.34 and 482,531.04

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Solution

The fourth proportional to 686,048.40, 946,274.34 and 482,531.04 is: 665,560.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    686,048.40 : 946,274.34 = 482,531.04 : x
  2. Step 2: Convert to fraction form
    686,048.40/946,274.34 = 482,531.04/x
  3. Step 3: Cross multiply
    686,048.40x = 946,274.34 × 482,531.04
  4. Step 4: Simplify right side
    686,048.40x = 456,606,741,405.51
  5. Step 5: Solve for x
    x = 456,606,741,405.51/686,048.40
  6. Step 6: Final answer
    x = 665,560.54

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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.