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Finding the Fourth Proportional to 633,538.99, 874,284.06 and 347,060.17

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Solution

The fourth proportional to 633,538.99, 874,284.06 and 347,060.17 is: 478,943.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,538.99 : 874,284.06 = 347,060.17 : x
  2. Step 2: Convert to fraction form
    633,538.99/874,284.06 = 347,060.17/x
  3. Step 3: Cross multiply
    633,538.99x = 874,284.06 × 347,060.17
  4. Step 4: Simplify right side
    633,538.99x = 303,429,174,491.89
  5. Step 5: Solve for x
    x = 303,429,174,491.89/633,538.99
  6. Step 6: Final answer
    x = 478,943.17

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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.