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Finding the Fourth Proportional to 536,485.80, 740,348.17 and 294,767.63

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Solution

The fourth proportional to 536,485.80, 740,348.17 and 294,767.63 is: 406,778.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,485.80 : 740,348.17 = 294,767.63 : x
  2. Step 2: Convert to fraction form
    536,485.80/740,348.17 = 294,767.63/x
  3. Step 3: Cross multiply
    536,485.80x = 740,348.17 × 294,767.63
  4. Step 4: Simplify right side
    536,485.80x = 218,230,673,783.38
  5. Step 5: Solve for x
    x = 218,230,673,783.38/536,485.80
  6. Step 6: Final answer
    x = 406,778.10

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Double scale
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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.