Home / 406,529.04-609,678.32-256,544.64

Finding the Fourth Proportional to 406,529.04, 609,678.32 and 256,544.64

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Solution

The fourth proportional to 406,529.04, 609,678.32 and 256,544.64 is: 384,744.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,529.04 : 609,678.32 = 256,544.64 : x
  2. Step 2: Convert to fraction form
    406,529.04/609,678.32 = 256,544.64/x
  3. Step 3: Cross multiply
    406,529.04x = 609,678.32 × 256,544.64
  4. Step 4: Simplify right side
    406,529.04x = 156,409,705,120.21
  5. Step 5: Solve for x
    x = 156,409,705,120.21/406,529.04
  6. Step 6: Final answer
    x = 384,744.24

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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.