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Finding the Fourth Proportional to 577,811.28, 797,401.38 and 316,184.19

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Solution

The fourth proportional to 577,811.28, 797,401.38 and 316,184.19 is: 436,346.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,811.28 : 797,401.38 = 316,184.19 : x
  2. Step 2: Convert to fraction form
    577,811.28/797,401.38 = 316,184.19/x
  3. Step 3: Cross multiply
    577,811.28x = 797,401.38 × 316,184.19
  4. Step 4: Simplify right side
    577,811.28x = 252,125,709,440.18
  5. Step 5: Solve for x
    x = 252,125,709,440.18/577,811.28
  6. Step 6: Final answer
    x = 436,346.12

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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.