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Finding the Fourth Proportional to 543,515.62, 750,111.50 and 310,964.16

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Solution

The fourth proportional to 543,515.62, 750,111.50 and 310,964.16 is: 429,164.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,515.62 : 750,111.50 = 310,964.16 : x
  2. Step 2: Convert to fraction form
    543,515.62/750,111.50 = 310,964.16/x
  3. Step 3: Cross multiply
    543,515.62x = 750,111.50 × 310,964.16
  4. Step 4: Simplify right side
    543,515.62x = 233,257,792,503.84
  5. Step 5: Solve for x
    x = 233,257,792,503.84/543,515.62
  6. Step 6: Final answer
    x = 429,164.84

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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.