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Finding the Fourth Proportional to 368,473.15, 508,502.88 and 207,333.91

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Solution

The fourth proportional to 368,473.15, 508,502.88 and 207,333.91 is: 286,126.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,473.15 : 508,502.88 = 207,333.91 : x
  2. Step 2: Convert to fraction form
    368,473.15/508,502.88 = 207,333.91/x
  3. Step 3: Cross multiply
    368,473.15x = 508,502.88 × 207,333.91
  4. Step 4: Simplify right side
    368,473.15x = 105,429,890,356.66
  5. Step 5: Solve for x
    x = 105,429,890,356.66/368,473.15
  6. Step 6: Final answer
    x = 286,126.38

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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.