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Finding the Fourth Proportional to 1,042,485, 1,438,619.58 and 589,776

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Solution

The fourth proportional to 1,042,485, 1,438,619.58 and 589,776 is: 813,885.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,042,485 : 1,438,619.58 = 589,776 : x
  2. Step 2: Convert to fraction form
    1,042,485/1,438,619.58 = 589,776/x
  3. Step 3: Cross multiply
    1,042,485x = 1,438,619.58 × 589,776
  4. Step 4: Simplify right side
    1,042,485x = 848,463,301,414.08
  5. Step 5: Solve for x
    x = 848,463,301,414.08/1,042,485
  6. Step 6: Final answer
    x = 813,885.38

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.