Home / 1,276,710.20-1,914,911.70-528,678.20

Finding the Fourth Proportional to 1,276,710.20, 1,914,911.70 and 528,678.20

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Solution

The fourth proportional to 1,276,710.20, 1,914,911.70 and 528,678.20 is: 792,953.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,276,710.20 : 1,914,911.70 = 528,678.20 : x
  2. Step 2: Convert to fraction form
    1,276,710.20/1,914,911.70 = 528,678.20/x
  3. Step 3: Cross multiply
    1,276,710.20x = 1,914,911.70 × 528,678.20
  4. Step 4: Simplify right side
    1,276,710.20x = 1,012,372,070,714.94
  5. Step 5: Solve for x
    x = 1,012,372,070,714.94/1,276,710.20
  6. Step 6: Final answer
    x = 792,953.70

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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.