Home / 535,677.63-739,119.65-309,191.91

Finding the Fourth Proportional to 535,677.63, 739,119.65 and 309,191.91

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Solution

The fourth proportional to 535,677.63, 739,119.65 and 309,191.91 is: 426,618.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    535,677.63 : 739,119.65 = 309,191.91 : x
  2. Step 2: Convert to fraction form
    535,677.63/739,119.65 = 309,191.91/x
  3. Step 3: Cross multiply
    535,677.63x = 739,119.65 × 309,191.91
  4. Step 4: Simplify right side
    535,677.63x = 228,529,811,984.37
  5. Step 5: Solve for x
    x = 228,529,811,984.37/535,677.63
  6. Step 6: Final answer
    x = 426,618.18

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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.