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Finding the Fourth Proportional to 402,183.81, 554,808.33 and 256,836.81

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Solution

The fourth proportional to 402,183.81, 554,808.33 and 256,836.81 is: 354,303.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,183.81 : 554,808.33 = 256,836.81 : x
  2. Step 2: Convert to fraction form
    402,183.81/554,808.33 = 256,836.81/x
  3. Step 3: Cross multiply
    402,183.81x = 554,808.33 × 256,836.81
  4. Step 4: Simplify right side
    402,183.81x = 142,495,201,638.63
  5. Step 5: Solve for x
    x = 142,495,201,638.63/402,183.81
  6. Step 6: Final answer
    x = 354,303.67

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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.