Home / 1,214,985.24-1,676,646-671,111.28

Finding the Fourth Proportional to 1,214,985.24, 1,676,646 and 671,111.28

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Solution

The fourth proportional to 1,214,985.24, 1,676,646 and 671,111.28 is: 926,114.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,214,985.24 : 1,676,646 = 671,111.28 : x
  2. Step 2: Convert to fraction form
    1,214,985.24/1,676,646 = 671,111.28/x
  3. Step 3: Cross multiply
    1,214,985.24x = 1,676,646 × 671,111.28
  4. Step 4: Simplify right side
    1,214,985.24x = 1,125,216,043,166.88
  5. Step 5: Solve for x
    x = 1,125,216,043,166.88/1,214,985.24
  6. Step 6: Final answer
    x = 926,114.99

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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.