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Finding the Fourth Proportional to 368,646.66, 508,630.59 and 207,492.30

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Solution

The fourth proportional to 368,646.66, 508,630.59 and 207,492.30 is: 286,282.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,646.66 : 508,630.59 = 207,492.30 : x
  2. Step 2: Convert to fraction form
    368,646.66/508,630.59 = 207,492.30/x
  3. Step 3: Cross multiply
    368,646.66x = 508,630.59 × 207,492.30
  4. Step 4: Simplify right side
    368,646.66x = 105,536,930,969.46
  5. Step 5: Solve for x
    x = 105,536,930,969.46/368,646.66
  6. Step 6: Final answer
    x = 286,282.08

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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.