Home / 1,316,043.30-1,816,145.55-712,431.30

Finding the Fourth Proportional to 1,316,043.30, 1,816,145.55 and 712,431.30

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Solution

The fourth proportional to 1,316,043.30, 1,816,145.55 and 712,431.30 is: 983,158.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,316,043.30 : 1,816,145.55 = 712,431.30 : x
  2. Step 2: Convert to fraction form
    1,316,043.30/1,816,145.55 = 712,431.30/x
  3. Step 3: Cross multiply
    1,316,043.30x = 1,816,145.55 × 712,431.30
  4. Step 4: Simplify right side
    1,316,043.30x = 1,293,878,935,175.72
  5. Step 5: Solve for x
    x = 1,293,878,935,175.72/1,316,043.30
  6. Step 6: Final answer
    x = 983,158.33

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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.