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Finding the Fourth Proportional to 673,299,686.80, 940,323,736.40 and 673,299,686.80

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Solution

The fourth proportional to 673,299,686.80, 940,323,736.40 and 673,299,686.80 is: 940,323,736.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    673,299,686.80 : 940,323,736.40 = 673,299,686.80 : x
  2. Step 2: Convert to fraction form
    673,299,686.80/940,323,736.40 = 673,299,686.80/x
  3. Step 3: Cross multiply
    673,299,686.80x = 940,323,736.40 × 673,299,686.80
  4. Step 4: Simplify right side
    673,299,686.80x = 633,119,677,208,725,760
  5. Step 5: Solve for x
    x = 633,119,677,208,725,760/673,299,686.80
  6. Step 6: Final answer
    x = 940,323,736.40

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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.