Home / 1,289,337.80-1,934,006.70-342,804.20

Finding the Fourth Proportional to 1,289,337.80, 1,934,006.70 and 342,804.20

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Solution

The fourth proportional to 1,289,337.80, 1,934,006.70 and 342,804.20 is: 514,206.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,289,337.80 : 1,934,006.70 = 342,804.20 : x
  2. Step 2: Convert to fraction form
    1,289,337.80/1,934,006.70 = 342,804.20/x
  3. Step 3: Cross multiply
    1,289,337.80x = 1,934,006.70 × 342,804.20
  4. Step 4: Simplify right side
    1,289,337.80x = 662,985,619,588.14
  5. Step 5: Solve for x
    x = 662,985,619,588.14/1,289,337.80
  6. Step 6: Final answer
    x = 514,206.30

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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.