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Finding the Fourth Proportional to 443,316.60, 664,038.90 and 293,628.60

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Solution

The fourth proportional to 443,316.60, 664,038.90 and 293,628.60 is: 439,822.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,316.60 : 664,038.90 = 293,628.60 : x
  2. Step 2: Convert to fraction form
    443,316.60/664,038.90 = 293,628.60/x
  3. Step 3: Cross multiply
    443,316.60x = 664,038.90 × 293,628.60
  4. Step 4: Simplify right side
    443,316.60x = 194,980,812,552.54
  5. Step 5: Solve for x
    x = 194,980,812,552.54/443,316.60
  6. Step 6: Final answer
    x = 439,822.94

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.