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Finding the Fourth Proportional to 1,184,124, 1,634,130 and 647,580

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Solution

The fourth proportional to 1,184,124, 1,634,130 and 647,580 is: 893,681.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,184,124 : 1,634,130 = 647,580 : x
  2. Step 2: Convert to fraction form
    1,184,124/1,634,130 = 647,580/x
  3. Step 3: Cross multiply
    1,184,124x = 1,634,130 × 647,580
  4. Step 4: Simplify right side
    1,184,124x = 1,058,229,905,400
  5. Step 5: Solve for x
    x = 1,058,229,905,400/1,184,124
  6. Step 6: Final answer
    x = 893,681.66

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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.