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Finding the Fourth Proportional to 806,698.80, 1,210,048.20 and 701,722.80

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Solution

The fourth proportional to 806,698.80, 1,210,048.20 and 701,722.80 is: 1,052,584.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    806,698.80 : 1,210,048.20 = 701,722.80 : x
  2. Step 2: Convert to fraction form
    806,698.80/1,210,048.20 = 701,722.80/x
  3. Step 3: Cross multiply
    806,698.80x = 1,210,048.20 × 701,722.80
  4. Step 4: Simplify right side
    806,698.80x = 849,118,411,038.96
  5. Step 5: Solve for x
    x = 849,118,411,038.96/806,698.80
  6. Step 6: Final answer
    x = 1,052,584.20

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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.