Home / 1,273,715.01-1,911,031.79-642,153.15

Finding the Fourth Proportional to 1,273,715.01, 1,911,031.79 and 642,153.15

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Solution

The fourth proportional to 1,273,715.01, 1,911,031.79 and 642,153.15 is: 963,461.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,273,715.01 : 1,911,031.79 = 642,153.15 : x
  2. Step 2: Convert to fraction form
    1,273,715.01/1,911,031.79 = 642,153.15/x
  3. Step 3: Cross multiply
    1,273,715.01x = 1,911,031.79 × 642,153.15
  4. Step 4: Simplify right side
    1,273,715.01x = 1,227,175,080,487.87
  5. Step 5: Solve for x
    x = 1,227,175,080,487.87/1,273,715.01
  6. Step 6: Final answer
    x = 963,461.27

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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.