Home / 1,289,569.80-1,934,354.70-1,112,422.80

Finding the Fourth Proportional to 1,289,569.80, 1,934,354.70 and 1,112,422.80

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Solution

The fourth proportional to 1,289,569.80, 1,934,354.70 and 1,112,422.80 is: 1,668,634.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,289,569.80 : 1,934,354.70 = 1,112,422.80 : x
  2. Step 2: Convert to fraction form
    1,289,569.80/1,934,354.70 = 1,112,422.80/x
  3. Step 3: Cross multiply
    1,289,569.80x = 1,934,354.70 × 1,112,422.80
  4. Step 4: Simplify right side
    1,289,569.80x = 2,151,820,271,567.16
  5. Step 5: Solve for x
    x = 2,151,820,271,567.16/1,289,569.80
  6. Step 6: Final answer
    x = 1,668,634.20

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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.