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Finding the Fourth Proportional to 614,526.88, 847,566.36 and 399,735.56

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Solution

The fourth proportional to 614,526.88, 847,566.36 and 399,735.56 is: 551,322.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    614,526.88 : 847,566.36 = 399,735.56 : x
  2. Step 2: Convert to fraction form
    614,526.88/847,566.36 = 399,735.56/x
  3. Step 3: Cross multiply
    614,526.88x = 847,566.36 × 399,735.56
  4. Step 4: Simplify right side
    614,526.88x = 338,802,413,551.76
  5. Step 5: Solve for x
    x = 338,802,413,551.76/614,526.88
  6. Step 6: Final answer
    x = 551,322.37

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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.