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Finding the Fourth Proportional to 707,080.40, 1,059,065.40 and 613,768.40

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Solution

The fourth proportional to 707,080.40, 1,059,065.40 and 613,768.40 is: 919,302.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    707,080.40 : 1,059,065.40 = 613,768.40 : x
  2. Step 2: Convert to fraction form
    707,080.40/1,059,065.40 = 613,768.40/x
  3. Step 3: Cross multiply
    707,080.40x = 1,059,065.40 × 613,768.40
  4. Step 4: Simplify right side
    707,080.40x = 650,020,876,053.36
  5. Step 5: Solve for x
    x = 650,020,876,053.36/707,080.40
  6. Step 6: Final answer
    x = 919,302.64

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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.