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Finding the Fourth Proportional to 691,880.94, 954,812.61 and 385,955.15

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Solution

The fourth proportional to 691,880.94, 954,812.61 and 385,955.15 is: 532,627.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,880.94 : 954,812.61 = 385,955.15 : x
  2. Step 2: Convert to fraction form
    691,880.94/954,812.61 = 385,955.15/x
  3. Step 3: Cross multiply
    691,880.94x = 954,812.61 × 385,955.15
  4. Step 4: Simplify right side
    691,880.94x = 368,514,839,340.38
  5. Step 5: Solve for x
    x = 368,514,839,340.38/691,880.94
  6. Step 6: Final answer
    x = 532,627.53

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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.