Home / 1,318,122.63-1,977,165.48-519,411.12

Finding the Fourth Proportional to 1,318,122.63, 1,977,165.48 and 519,411.12

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Solution

The fourth proportional to 1,318,122.63, 1,977,165.48 and 519,411.12 is: 779,109.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,318,122.63 : 1,977,165.48 = 519,411.12 : x
  2. Step 2: Convert to fraction form
    1,318,122.63/1,977,165.48 = 519,411.12/x
  3. Step 3: Cross multiply
    1,318,122.63x = 1,977,165.48 × 519,411.12
  4. Step 4: Simplify right side
    1,318,122.63x = 1,026,961,736,392.14
  5. Step 5: Solve for x
    x = 1,026,961,736,392.14/1,318,122.63
  6. Step 6: Final answer
    x = 779,109.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.