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Finding the Fourth Proportional to 701,426.16, 967,916.94 and 395,486.76

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Solution

The fourth proportional to 701,426.16, 967,916.94 and 395,486.76 is: 545,742.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    701,426.16 : 967,916.94 = 395,486.76 : x
  2. Step 2: Convert to fraction form
    701,426.16/967,916.94 = 395,486.76/x
  3. Step 3: Cross multiply
    701,426.16x = 967,916.94 × 395,486.76
  4. Step 4: Simplify right side
    701,426.16x = 382,798,334,549.71
  5. Step 5: Solve for x
    x = 382,798,334,549.71/701,426.16
  6. Step 6: Final answer
    x = 545,742.88

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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.