Home / 545,559.37-817,814.17-279,445.21

Finding the Fourth Proportional to 545,559.37, 817,814.17 and 279,445.21

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Solution

The fourth proportional to 545,559.37, 817,814.17 and 279,445.21 is: 418,898.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,559.37 : 817,814.17 = 279,445.21 : x
  2. Step 2: Convert to fraction form
    545,559.37/817,814.17 = 279,445.21/x
  3. Step 3: Cross multiply
    545,559.37x = 817,814.17 × 279,445.21
  4. Step 4: Simplify right side
    545,559.37x = 228,534,252,476.63
  5. Step 5: Solve for x
    x = 228,534,252,476.63/545,559.37
  6. Step 6: Final answer
    x = 418,898.96

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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.