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Finding the Fourth Proportional to 673,975.50, 930,087 and 372,169.50

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Solution

The fourth proportional to 673,975.50, 930,087 and 372,169.50 is: 513,594.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    673,975.50 : 930,087 = 372,169.50 : x
  2. Step 2: Convert to fraction form
    673,975.50/930,087 = 372,169.50/x
  3. Step 3: Cross multiply
    673,975.50x = 930,087 × 372,169.50
  4. Step 4: Simplify right side
    673,975.50x = 346,150,013,746.50
  5. Step 5: Solve for x
    x = 346,150,013,746.50/673,975.50
  6. Step 6: Final answer
    x = 513,594.36

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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.