Home / 1,940,191.76-2,676,501.72-1,296,475.28

Finding the Fourth Proportional to 1,940,191.76, 2,676,501.72 and 1,296,475.28

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Solution

The fourth proportional to 1,940,191.76, 2,676,501.72 and 1,296,475.28 is: 1,788,492.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,940,191.76 : 2,676,501.72 = 1,296,475.28 : x
  2. Step 2: Convert to fraction form
    1,940,191.76/2,676,501.72 = 1,296,475.28/x
  3. Step 3: Cross multiply
    1,940,191.76x = 2,676,501.72 × 1,296,475.28
  4. Step 4: Simplify right side
    1,940,191.76x = 3,470,018,316,857.48
  5. Step 5: Solve for x
    x = 3,470,018,316,857.48/1,940,191.76
  6. Step 6: Final answer
    x = 1,788,492.45

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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.