Home / 1,266,955.79-1,748,397.44-686,178.61

Finding the Fourth Proportional to 1,266,955.79, 1,748,397.44 and 686,178.61

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Solution

The fourth proportional to 1,266,955.79, 1,748,397.44 and 686,178.61 is: 946,925.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,266,955.79 : 1,748,397.44 = 686,178.61 : x
  2. Step 2: Convert to fraction form
    1,266,955.79/1,748,397.44 = 686,178.61/x
  3. Step 3: Cross multiply
    1,266,955.79x = 1,748,397.44 × 686,178.61
  4. Step 4: Simplify right side
    1,266,955.79x = 1,199,712,922,451.21
  5. Step 5: Solve for x
    x = 1,199,712,922,451.21/1,266,955.79
  6. Step 6: Final answer
    x = 946,925.64

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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.