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Finding the Fourth Proportional to 443,783.13, 612,420.71 and 242,579.13

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Solution

The fourth proportional to 443,783.13, 612,420.71 and 242,579.13 is: 334,759.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,783.13 : 612,420.71 = 242,579.13 : x
  2. Step 2: Convert to fraction form
    443,783.13/612,420.71 = 242,579.13/x
  3. Step 3: Cross multiply
    443,783.13x = 612,420.71 × 242,579.13
  4. Step 4: Simplify right side
    443,783.13x = 148,560,483,025.78
  5. Step 5: Solve for x
    x = 148,560,483,025.78/443,783.13
  6. Step 6: Final answer
    x = 334,759.19

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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.