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Finding the Fourth Proportional to 673,068.75, 928,900.50 and 371,262.75

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Solution

The fourth proportional to 673,068.75, 928,900.50 and 371,262.75 is: 512,378.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    673,068.75 : 928,900.50 = 371,262.75 : x
  2. Step 2: Convert to fraction form
    673,068.75/928,900.50 = 371,262.75/x
  3. Step 3: Cross multiply
    673,068.75x = 928,900.50 × 371,262.75
  4. Step 4: Simplify right side
    673,068.75x = 344,866,154,106.38
  5. Step 5: Solve for x
    x = 344,866,154,106.38/673,068.75
  6. Step 6: Final answer
    x = 512,378.79

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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.