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Finding the Fourth Proportional to 443,811, 612,459.18 and 242,607

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Solution

The fourth proportional to 443,811, 612,459.18 and 242,607 is: 334,797.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,811 : 612,459.18 = 242,607 : x
  2. Step 2: Convert to fraction form
    443,811/612,459.18 = 242,607/x
  3. Step 3: Cross multiply
    443,811x = 612,459.18 × 242,607
  4. Step 4: Simplify right side
    443,811x = 148,586,884,282.26
  5. Step 5: Solve for x
    x = 148,586,884,282.26/443,811
  6. Step 6: Final answer
    x = 334,797.66

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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.