Home / 440,830.16-607,782.45-285,507.03

Finding the Fourth Proportional to 440,830.16, 607,782.45 and 285,507.03

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Solution

The fourth proportional to 440,830.16, 607,782.45 and 285,507.03 is: 393,634.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,830.16 : 607,782.45 = 285,507.03 : x
  2. Step 2: Convert to fraction form
    440,830.16/607,782.45 = 285,507.03/x
  3. Step 3: Cross multiply
    440,830.16x = 607,782.45 × 285,507.03
  4. Step 4: Simplify right side
    440,830.16x = 173,526,162,185.62
  5. Step 5: Solve for x
    x = 173,526,162,185.62/440,830.16
  6. Step 6: Final answer
    x = 393,634.96

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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.