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Finding the Fourth Proportional to 369,668.80, 554,117.28 and 268,221.76

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Solution

The fourth proportional to 369,668.80, 554,117.28 and 268,221.76 is: 402,052.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,668.80 : 554,117.28 = 268,221.76 : x
  2. Step 2: Convert to fraction form
    369,668.80/554,117.28 = 268,221.76/x
  3. Step 3: Cross multiply
    369,668.80x = 554,117.28 × 268,221.76
  4. Step 4: Simplify right side
    369,668.80x = 148,626,312,088.01
  5. Step 5: Solve for x
    x = 148,626,312,088.01/369,668.80
  6. Step 6: Final answer
    x = 402,052.63

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.