Home / 761,369.32-1,050,690.18-421,843.24

Finding the Fourth Proportional to 761,369.32, 1,050,690.18 and 421,843.24

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Solution

The fourth proportional to 761,369.32, 1,050,690.18 and 421,843.24 is: 582,143.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,369.32 : 1,050,690.18 = 421,843.24 : x
  2. Step 2: Convert to fraction form
    761,369.32/1,050,690.18 = 421,843.24/x
  3. Step 3: Cross multiply
    761,369.32x = 1,050,690.18 × 421,843.24
  4. Step 4: Simplify right side
    761,369.32x = 443,226,549,767.38
  5. Step 5: Solve for x
    x = 443,226,549,767.38/761,369.32
  6. Step 6: Final answer
    x = 582,143.96

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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.