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Finding the Fourth Proportional to 443,993.45, 612,698.51 and 242,785.13

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Solution

The fourth proportional to 443,993.45, 612,698.51 and 242,785.13 is: 335,036.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,993.45 : 612,698.51 = 242,785.13 : x
  2. Step 2: Convert to fraction form
    443,993.45/612,698.51 = 242,785.13/x
  3. Step 3: Cross multiply
    443,993.45x = 612,698.51 × 242,785.13
  4. Step 4: Simplify right side
    443,993.45x = 148,754,084,944.63
  5. Step 5: Solve for x
    x = 148,754,084,944.63/443,993.45
  6. Step 6: Final answer
    x = 335,036.67

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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.