Home / 1,973,387.13-2,960,548.69-643,691.13

Finding the Fourth Proportional to 1,973,387.13, 2,960,548.69 and 643,691.13

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Solution

The fourth proportional to 1,973,387.13, 2,960,548.69 and 643,691.13 is: 965,689.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,973,387.13 : 2,960,548.69 = 643,691.13 : x
  2. Step 2: Convert to fraction form
    1,973,387.13/2,960,548.69 = 643,691.13/x
  3. Step 3: Cross multiply
    1,973,387.13x = 2,960,548.69 × 643,691.13
  4. Step 4: Simplify right side
    1,973,387.13x = 1,905,678,931,686.12
  5. Step 5: Solve for x
    x = 1,905,678,931,686.12/1,973,387.13
  6. Step 6: Final answer
    x = 965,689.35

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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.