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Finding the Fourth Proportional to 357,435.98, 535,337.39 and 170,578.70

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Solution

The fourth proportional to 357,435.98, 535,337.39 and 170,578.70 is: 255,478.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,435.98 : 535,337.39 = 170,578.70 : x
  2. Step 2: Convert to fraction form
    357,435.98/535,337.39 = 170,578.70/x
  3. Step 3: Cross multiply
    357,435.98x = 535,337.39 × 170,578.70
  4. Step 4: Simplify right side
    357,435.98x = 91,317,153,797.35
  5. Step 5: Solve for x
    x = 91,317,153,797.35/357,435.98
  6. Step 6: Final answer
    x = 255,478.35

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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.