Home / 727,464.12-1,003,931.64-405,174.30

Finding the Fourth Proportional to 727,464.12, 1,003,931.64 and 405,174.30

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Solution

The fourth proportional to 727,464.12, 1,003,931.64 and 405,174.30 is: 559,157.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,464.12 : 1,003,931.64 = 405,174.30 : x
  2. Step 2: Convert to fraction form
    727,464.12/1,003,931.64 = 405,174.30/x
  3. Step 3: Cross multiply
    727,464.12x = 1,003,931.64 × 405,174.30
  4. Step 4: Simplify right side
    727,464.12x = 406,767,299,484.85
  5. Step 5: Solve for x
    x = 406,767,299,484.85/727,464.12
  6. Step 6: Final answer
    x = 559,157.89

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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.