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Finding the Fourth Proportional to 707,056.80, 1,059,418.80 and 602,080.80

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Solution

The fourth proportional to 707,056.80, 1,059,418.80 and 602,080.80 is: 902,127.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    707,056.80 : 1,059,418.80 = 602,080.80 : x
  2. Step 2: Convert to fraction form
    707,056.80/1,059,418.80 = 602,080.80/x
  3. Step 3: Cross multiply
    707,056.80x = 1,059,418.80 × 602,080.80
  4. Step 4: Simplify right side
    707,056.80x = 637,855,718,639.04
  5. Step 5: Solve for x
    x = 637,855,718,639.04/707,056.80
  6. Step 6: Final answer
    x = 902,127.97

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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.