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Finding the Fourth Proportional to 357,445.10, 493,277.65 and 196,303.50

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Solution

The fourth proportional to 357,445.10, 493,277.65 and 196,303.50 is: 270,900.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,445.10 : 493,277.65 = 196,303.50 : x
  2. Step 2: Convert to fraction form
    357,445.10/493,277.65 = 196,303.50/x
  3. Step 3: Cross multiply
    357,445.10x = 493,277.65 × 196,303.50
  4. Step 4: Simplify right side
    357,445.10x = 96,832,128,676.02
  5. Step 5: Solve for x
    x = 96,832,128,676.02/357,445.10
  6. Step 6: Final answer
    x = 270,900.70

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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.