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Finding the Fourth Proportional to 292,750.74, 403,990.76 and 165,423.60

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Solution

The fourth proportional to 292,750.74, 403,990.76 and 165,423.60 is: 228,281.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,750.74 : 403,990.76 = 165,423.60 : x
  2. Step 2: Convert to fraction form
    292,750.74/403,990.76 = 165,423.60/x
  3. Step 3: Cross multiply
    292,750.74x = 403,990.76 × 165,423.60
  4. Step 4: Simplify right side
    292,750.74x = 66,829,606,299.50
  5. Step 5: Solve for x
    x = 66,829,606,299.50/292,750.74
  6. Step 6: Final answer
    x = 228,281.60

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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.