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Finding the Fourth Proportional to 562,114.23, 775,499.75 and 358,128.63

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Solution

The fourth proportional to 562,114.23, 775,499.75 and 358,128.63 is: 494,078.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,114.23 : 775,499.75 = 358,128.63 : x
  2. Step 2: Convert to fraction form
    562,114.23/775,499.75 = 358,128.63/x
  3. Step 3: Cross multiply
    562,114.23x = 775,499.75 × 358,128.63
  4. Step 4: Simplify right side
    562,114.23x = 277,728,661,242.20
  5. Step 5: Solve for x
    x = 277,728,661,242.20/562,114.23
  6. Step 6: Final answer
    x = 494,078.69

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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.