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Finding the Fourth Proportional to 927,715.70, 1,391,573.55 and 927,715.70

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Solution

The fourth proportional to 927,715.70, 1,391,573.55 and 927,715.70 is: 1,391,573.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    927,715.70 : 1,391,573.55 = 927,715.70 : x
  2. Step 2: Convert to fraction form
    927,715.70/1,391,573.55 = 927,715.70/x
  3. Step 3: Cross multiply
    927,715.70x = 1,391,573.55 × 927,715.70
  4. Step 4: Simplify right side
    927,715.70x = 1,290,984,630,039.73
  5. Step 5: Solve for x
    x = 1,290,984,630,039.73/927,715.70
  6. Step 6: Final answer
    x = 1,391,573.55

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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.