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Finding the Fourth Proportional to 291,590.99, 436,853.55 and 211,430.35

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Solution

The fourth proportional to 291,590.99, 436,853.55 and 211,430.35 is: 316,759.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,590.99 : 436,853.55 = 211,430.35 : x
  2. Step 2: Convert to fraction form
    291,590.99/436,853.55 = 211,430.35/x
  3. Step 3: Cross multiply
    291,590.99x = 436,853.55 × 211,430.35
  4. Step 4: Simplify right side
    291,590.99x = 92,364,100,314.17
  5. Step 5: Solve for x
    x = 92,364,100,314.17/291,590.99
  6. Step 6: Final answer
    x = 316,759.10

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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.