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Finding the Fourth Proportional to 619,271.40, 854,526.20 and 347,283.32

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Solution

The fourth proportional to 619,271.40, 854,526.20 and 347,283.32 is: 479,212.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,271.40 : 854,526.20 = 347,283.32 : x
  2. Step 2: Convert to fraction form
    619,271.40/854,526.20 = 347,283.32/x
  3. Step 3: Cross multiply
    619,271.40x = 854,526.20 × 347,283.32
  4. Step 4: Simplify right side
    619,271.40x = 296,762,695,328.88
  5. Step 5: Solve for x
    x = 296,762,695,328.88/619,271.40
  6. Step 6: Final answer
    x = 479,212.66

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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.