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Finding the Fourth Proportional to 1,678,961.71, 2,316,975.01 and 953,849.22

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Solution

The fourth proportional to 1,678,961.71, 2,316,975.01 and 953,849.22 is: 1,316,316.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,678,961.71 : 2,316,975.01 = 953,849.22 : x
  2. Step 2: Convert to fraction form
    1,678,961.71/2,316,975.01 = 953,849.22/x
  3. Step 3: Cross multiply
    1,678,961.71x = 2,316,975.01 × 953,849.22
  4. Step 4: Simplify right side
    1,678,961.71x = 2,210,044,800,340.11
  5. Step 5: Solve for x
    x = 2,210,044,800,340.11/1,678,961.71
  6. Step 6: Final answer
    x = 1,316,316.38

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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.