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Finding the Fourth Proportional to 459,421.60, 689,132.40 and 333,450.40

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Solution

The fourth proportional to 459,421.60, 689,132.40 and 333,450.40 is: 500,175.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,421.60 : 689,132.40 = 333,450.40 : x
  2. Step 2: Convert to fraction form
    459,421.60/689,132.40 = 333,450.40/x
  3. Step 3: Cross multiply
    459,421.60x = 689,132.40 × 333,450.40
  4. Step 4: Simplify right side
    459,421.60x = 229,791,474,432.96
  5. Step 5: Solve for x
    x = 229,791,474,432.96/459,421.60
  6. Step 6: Final answer
    x = 500,175.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.