Home / 890,609.70-1,336,076.55-291,404.10

Finding the Fourth Proportional to 890,609.70, 1,336,076.55 and 291,404.10

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Solution

The fourth proportional to 890,609.70, 1,336,076.55 and 291,404.10 is: 437,159.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,609.70 : 1,336,076.55 = 291,404.10 : x
  2. Step 2: Convert to fraction form
    890,609.70/1,336,076.55 = 291,404.10/x
  3. Step 3: Cross multiply
    890,609.70x = 1,336,076.55 × 291,404.10
  4. Step 4: Simplify right side
    890,609.70x = 389,338,184,583.86
  5. Step 5: Solve for x
    x = 389,338,184,583.86/890,609.70
  6. Step 6: Final answer
    x = 437,159.16

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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.