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Finding the Fourth Proportional to 540,918.84, 746,216.64 and 349,993.74

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Solution

The fourth proportional to 540,918.84, 746,216.64 and 349,993.74 is: 482,828.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,918.84 : 746,216.64 = 349,993.74 : x
  2. Step 2: Convert to fraction form
    540,918.84/746,216.64 = 349,993.74/x
  3. Step 3: Cross multiply
    540,918.84x = 746,216.64 × 349,993.74
  4. Step 4: Simplify right side
    540,918.84x = 261,171,152,683.83
  5. Step 5: Solve for x
    x = 261,171,152,683.83/540,918.84
  6. Step 6: Final answer
    x = 482,828.72

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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.