Home / 826,157.88-1,140,005.34-463,506.30

Finding the Fourth Proportional to 826,157.88, 1,140,005.34 and 463,506.30

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Solution

The fourth proportional to 826,157.88, 1,140,005.34 and 463,506.30 is: 639,586.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    826,157.88 : 1,140,005.34 = 463,506.30 : x
  2. Step 2: Convert to fraction form
    826,157.88/1,140,005.34 = 463,506.30/x
  3. Step 3: Cross multiply
    826,157.88x = 1,140,005.34 × 463,506.30
  4. Step 4: Simplify right side
    826,157.88x = 528,399,657,123.64
  5. Step 5: Solve for x
    x = 528,399,657,123.64/826,157.88
  6. Step 6: Final answer
    x = 639,586.78

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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.