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Finding the Fourth Proportional to 443,688.06, 612,289.71 and 242,484.06

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Solution

The fourth proportional to 443,688.06, 612,289.71 and 242,484.06 is: 334,628.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,688.06 : 612,289.71 = 242,484.06 : x
  2. Step 2: Convert to fraction form
    443,688.06/612,289.71 = 242,484.06/x
  3. Step 3: Cross multiply
    443,688.06x = 612,289.71 × 242,484.06
  4. Step 4: Simplify right side
    443,688.06x = 148,470,494,777.02
  5. Step 5: Solve for x
    x = 148,470,494,777.02/443,688.06
  6. Step 6: Final answer
    x = 334,628.11

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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.