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Finding the Fourth Proportional to 447,051.17, 616,946.84 and 256,101.47

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Solution

The fourth proportional to 447,051.17, 616,946.84 and 256,101.47 is: 353,429.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,051.17 : 616,946.84 = 256,101.47 : x
  2. Step 2: Convert to fraction form
    447,051.17/616,946.84 = 256,101.47/x
  3. Step 3: Cross multiply
    447,051.17x = 616,946.84 × 256,101.47
  4. Step 4: Simplify right side
    447,051.17x = 158,000,988,270.61
  5. Step 5: Solve for x
    x = 158,000,988,270.61/447,051.17
  6. Step 6: Final answer
    x = 353,429.32

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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.