Home / 1,938,178.98-2,907,039.51-518,345.10

Finding the Fourth Proportional to 1,938,178.98, 2,907,039.51 and 518,345.10

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Solution

The fourth proportional to 1,938,178.98, 2,907,039.51 and 518,345.10 is: 777,456.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,938,178.98 : 2,907,039.51 = 518,345.10 : x
  2. Step 2: Convert to fraction form
    1,938,178.98/2,907,039.51 = 518,345.10/x
  3. Step 3: Cross multiply
    1,938,178.98x = 2,907,039.51 × 518,345.10
  4. Step 4: Simplify right side
    1,938,178.98x = 1,506,849,685,514.90
  5. Step 5: Solve for x
    x = 1,506,849,685,514.90/1,938,178.98
  6. Step 6: Final answer
    x = 777,456.42

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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.