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Finding the Fourth Proportional to 342,417.60, 513,626.40 and 333,669.60

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Solution

The fourth proportional to 342,417.60, 513,626.40 and 333,669.60 is: 500,504.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,417.60 : 513,626.40 = 333,669.60 : x
  2. Step 2: Convert to fraction form
    342,417.60/513,626.40 = 333,669.60/x
  3. Step 3: Cross multiply
    342,417.60x = 513,626.40 × 333,669.60
  4. Step 4: Simplify right side
    342,417.60x = 171,381,515,437.44
  5. Step 5: Solve for x
    x = 171,381,515,437.44/342,417.60
  6. Step 6: Final answer
    x = 500,504.40

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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.