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Finding the Fourth Proportional to 531,586.74, 797,840.80 and 279,045.76

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Solution

The fourth proportional to 531,586.74, 797,840.80 and 279,045.76 is: 418,810.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,586.74 : 797,840.80 = 279,045.76 : x
  2. Step 2: Convert to fraction form
    531,586.74/797,840.80 = 279,045.76/x
  3. Step 3: Cross multiply
    531,586.74x = 797,840.80 × 279,045.76
  4. Step 4: Simplify right side
    531,586.74x = 222,634,092,395.01
  5. Step 5: Solve for x
    x = 222,634,092,395.01/531,586.74
  6. Step 6: Final answer
    x = 418,810.47

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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.