Home / 439,743.30-659,874.15-290,415.30

Finding the Fourth Proportional to 439,743.30, 659,874.15 and 290,415.30

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Solution

The fourth proportional to 439,743.30, 659,874.15 and 290,415.30 is: 435,794.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,743.30 : 659,874.15 = 290,415.30 : x
  2. Step 2: Convert to fraction form
    439,743.30/659,874.15 = 290,415.30/x
  3. Step 3: Cross multiply
    439,743.30x = 659,874.15 × 290,415.30
  4. Step 4: Simplify right side
    439,743.30x = 191,637,549,234.50
  5. Step 5: Solve for x
    x = 191,637,549,234.50/439,743.30
  6. Step 6: Final answer
    x = 435,794.13

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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.