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Finding the Fourth Proportional to 708,504.80, 1,064,830.80 and 617,266.40

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Solution

The fourth proportional to 708,504.80, 1,064,830.80 and 617,266.40 is: 927,706.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,504.80 : 1,064,830.80 = 617,266.40 : x
  2. Step 2: Convert to fraction form
    708,504.80/1,064,830.80 = 617,266.40/x
  3. Step 3: Cross multiply
    708,504.80x = 1,064,830.80 × 617,266.40
  4. Step 4: Simplify right side
    708,504.80x = 657,284,274,525.12
  5. Step 5: Solve for x
    x = 657,284,274,525.12/708,504.80
  6. Step 6: Final answer
    x = 927,706.17

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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.