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Finding the Fourth Proportional to 589,107.44, 812,690.17 and 503,980.86

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Solution

The fourth proportional to 589,107.44, 812,690.17 and 503,980.86 is: 695,255.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    589,107.44 : 812,690.17 = 503,980.86 : x
  2. Step 2: Convert to fraction form
    589,107.44/812,690.17 = 503,980.86/x
  3. Step 3: Cross multiply
    589,107.44x = 812,690.17 × 503,980.86
  4. Step 4: Simplify right side
    589,107.44x = 409,580,290,646.47
  5. Step 5: Solve for x
    x = 409,580,290,646.47/589,107.44
  6. Step 6: Final answer
    x = 695,255.67

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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.