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Finding the Fourth Proportional to 1,014,289, 1,399,762.56 and 561,580

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Solution

The fourth proportional to 1,014,289, 1,399,762.56 and 561,580 is: 775,004.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,014,289 : 1,399,762.56 = 561,580 : x
  2. Step 2: Convert to fraction form
    1,014,289/1,399,762.56 = 561,580/x
  3. Step 3: Cross multiply
    1,014,289x = 1,399,762.56 × 561,580
  4. Step 4: Simplify right side
    1,014,289x = 786,078,658,444.80
  5. Step 5: Solve for x
    x = 786,078,658,444.80/1,014,289
  6. Step 6: Final answer
    x = 775,004.62

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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.