Home / 1,678,666.81-2,518,977.21-705,961.21

Finding the Fourth Proportional to 1,678,666.81, 2,518,977.21 and 705,961.21

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Solution

The fourth proportional to 1,678,666.81, 2,518,977.21 and 705,961.21 is: 1,059,352.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,678,666.81 : 2,518,977.21 = 705,961.21 : x
  2. Step 2: Convert to fraction form
    1,678,666.81/2,518,977.21 = 705,961.21/x
  3. Step 3: Cross multiply
    1,678,666.81x = 2,518,977.21 × 705,961.21
  4. Step 4: Simplify right side
    1,678,666.81x = 1,778,300,199,134.02
  5. Step 5: Solve for x
    x = 1,778,300,199,134.02/1,678,666.81
  6. Step 6: Final answer
    x = 1,059,352.69

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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.