Home / 919,869.36-1,269,419.40-517,461.36

Finding the Fourth Proportional to 919,869.36, 1,269,419.40 and 517,461.36

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Solution

The fourth proportional to 919,869.36, 1,269,419.40 and 517,461.36 is: 714,096.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,869.36 : 1,269,419.40 = 517,461.36 : x
  2. Step 2: Convert to fraction form
    919,869.36/1,269,419.40 = 517,461.36/x
  3. Step 3: Cross multiply
    919,869.36x = 1,269,419.40 × 517,461.36
  4. Step 4: Simplify right side
    919,869.36x = 656,875,489,134.38
  5. Step 5: Solve for x
    x = 656,875,489,134.38/919,869.36
  6. Step 6: Final answer
    x = 714,096.50

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.