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Finding the Fourth Proportional to 885,789.90, 1,237,306.50 and 885,789.90

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Solution

The fourth proportional to 885,789.90, 1,237,306.50 and 885,789.90 is: 1,237,306.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,789.90 : 1,237,306.50 = 885,789.90 : x
  2. Step 2: Convert to fraction form
    885,789.90/1,237,306.50 = 885,789.90/x
  3. Step 3: Cross multiply
    885,789.90x = 1,237,306.50 × 885,789.90
  4. Step 4: Simplify right side
    885,789.90x = 1,095,993,600,904.35
  5. Step 5: Solve for x
    x = 1,095,993,600,904.35/885,789.90
  6. Step 6: Final answer
    x = 1,237,306.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.