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Finding the Fourth Proportional to 703,418.06, 970,715.58 and 381,136.88

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Solution

The fourth proportional to 703,418.06, 970,715.58 and 381,136.88 is: 525,968.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,418.06 : 970,715.58 = 381,136.88 : x
  2. Step 2: Convert to fraction form
    703,418.06/970,715.58 = 381,136.88/x
  3. Step 3: Cross multiply
    703,418.06x = 970,715.58 × 381,136.88
  4. Step 4: Simplify right side
    703,418.06x = 369,975,502,675.01
  5. Step 5: Solve for x
    x = 369,975,502,675.01/703,418.06
  6. Step 6: Final answer
    x = 525,968.16

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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.