Home / 823,686.10-1,235,529.15-291,202.90

Finding the Fourth Proportional to 823,686.10, 1,235,529.15 and 291,202.90

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Solution

The fourth proportional to 823,686.10, 1,235,529.15 and 291,202.90 is: 436,804.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    823,686.10 : 1,235,529.15 = 291,202.90 : x
  2. Step 2: Convert to fraction form
    823,686.10/1,235,529.15 = 291,202.90/x
  3. Step 3: Cross multiply
    823,686.10x = 1,235,529.15 × 291,202.90
  4. Step 4: Simplify right side
    823,686.10x = 359,789,671,514.54
  5. Step 5: Solve for x
    x = 359,789,671,514.54/823,686.10
  6. Step 6: Final answer
    x = 436,804.35

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.