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Finding the Fourth Proportional to 571,014.60, 856,521.90 and 349,830.60

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Solution

The fourth proportional to 571,014.60, 856,521.90 and 349,830.60 is: 524,745.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,014.60 : 856,521.90 = 349,830.60 : x
  2. Step 2: Convert to fraction form
    571,014.60/856,521.90 = 349,830.60/x
  3. Step 3: Cross multiply
    571,014.60x = 856,521.90 × 349,830.60
  4. Step 4: Simplify right side
    571,014.60x = 299,637,570,190.14
  5. Step 5: Solve for x
    x = 299,637,570,190.14/571,014.60
  6. Step 6: Final answer
    x = 524,745.90

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Similar ratio
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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.