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Finding the Fourth Proportional to 6,426,398.65, 8,868,430.13 and 3,673,145.19

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Solution

The fourth proportional to 6,426,398.65, 8,868,430.13 and 3,673,145.19 is: 5,068,940.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,426,398.65 : 8,868,430.13 = 3,673,145.19 : x
  2. Step 2: Convert to fraction form
    6,426,398.65/8,868,430.13 = 3,673,145.19/x
  3. Step 3: Cross multiply
    6,426,398.65x = 8,868,430.13 × 3,673,145.19
  4. Step 4: Simplify right side
    6,426,398.65x = 32,575,031,456,494.85
  5. Step 5: Solve for x
    x = 32,575,031,456,494.85/6,426,398.65
  6. Step 6: Final answer
    x = 5,068,940.36

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Double scale
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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.