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Finding the Fourth Proportional to 292,497.60, 403,439.76 and 190,335

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Solution

The fourth proportional to 292,497.60, 403,439.76 and 190,335 is: 262,527.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,497.60 : 403,439.76 = 190,335 : x
  2. Step 2: Convert to fraction form
    292,497.60/403,439.76 = 190,335/x
  3. Step 3: Cross multiply
    292,497.60x = 403,439.76 × 190,335
  4. Step 4: Simplify right side
    292,497.60x = 76,788,706,719.60
  5. Step 5: Solve for x
    x = 76,788,706,719.60/292,497.60
  6. Step 6: Final answer
    x = 262,527.65

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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.