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Finding the Fourth Proportional to 885,819.40, 1,237,347.80 and 885,819.40

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Solution

The fourth proportional to 885,819.40, 1,237,347.80 and 885,819.40 is: 1,237,347.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,819.40 : 1,237,347.80 = 885,819.40 : x
  2. Step 2: Convert to fraction form
    885,819.40/1,237,347.80 = 885,819.40/x
  3. Step 3: Cross multiply
    885,819.40x = 1,237,347.80 × 885,819.40
  4. Step 4: Simplify right side
    885,819.40x = 1,096,066,685,787.32
  5. Step 5: Solve for x
    x = 1,096,066,685,787.32/885,819.40
  6. Step 6: Final answer
    x = 1,237,347.80

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Double scale
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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.