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Finding the Fourth Proportional to 358,334.69, 536,911.23 and 208,153.40

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Solution

The fourth proportional to 358,334.69, 536,911.23 and 208,153.40 is: 311,886.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,334.69 : 536,911.23 = 208,153.40 : x
  2. Step 2: Convert to fraction form
    358,334.69/536,911.23 = 208,153.40/x
  3. Step 3: Cross multiply
    358,334.69x = 536,911.23 × 208,153.40
  4. Step 4: Simplify right side
    358,334.69x = 111,759,896,118.70
  5. Step 5: Solve for x
    x = 111,759,896,118.70/358,334.69
  6. Step 6: Final answer
    x = 311,886.91

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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.