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Finding the Fourth Proportional to 368,486.44, 508,505.22 and 207,341.32

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Solution

The fourth proportional to 368,486.44, 508,505.22 and 207,341.32 is: 286,127.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,486.44 : 508,505.22 = 207,341.32 : x
  2. Step 2: Convert to fraction form
    368,486.44/508,505.22 = 207,341.32/x
  3. Step 3: Cross multiply
    368,486.44x = 508,505.22 × 207,341.32
  4. Step 4: Simplify right side
    368,486.44x = 105,434,143,541.69
  5. Step 5: Solve for x
    x = 105,434,143,541.69/368,486.44
  6. Step 6: Final answer
    x = 286,127.61

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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.