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Finding the Fourth Proportional to 710,008.80, 1,065,790.80 and 444,069.60

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Solution

The fourth proportional to 710,008.80, 1,065,790.80 and 444,069.60 is: 666,590.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    710,008.80 : 1,065,790.80 = 444,069.60 : x
  2. Step 2: Convert to fraction form
    710,008.80/1,065,790.80 = 444,069.60/x
  3. Step 3: Cross multiply
    710,008.80x = 1,065,790.80 × 444,069.60
  4. Step 4: Simplify right side
    710,008.80x = 473,285,294,239.68
  5. Step 5: Solve for x
    x = 473,285,294,239.68/710,008.80
  6. Step 6: Final answer
    x = 666,590.74

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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.