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Finding the Fourth Proportional to 543,526.70, 750,136.05 and 328,668.30

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Solution

The fourth proportional to 543,526.70, 750,136.05 and 328,668.30 is: 453,604.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,526.70 : 750,136.05 = 328,668.30 : x
  2. Step 2: Convert to fraction form
    543,526.70/750,136.05 = 328,668.30/x
  3. Step 3: Cross multiply
    543,526.70x = 750,136.05 × 328,668.30
  4. Step 4: Simplify right side
    543,526.70x = 246,545,940,322.22
  5. Step 5: Solve for x
    x = 246,545,940,322.22/543,526.70
  6. Step 6: Final answer
    x = 453,604.11

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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.