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Finding the Fourth Proportional to 1,404,509.05, 1,938,014.67 and 852,937.91

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Solution

The fourth proportional to 1,404,509.05, 1,938,014.67 and 852,937.91 is: 1,176,928.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,404,509.05 : 1,938,014.67 = 852,937.91 : x
  2. Step 2: Convert to fraction form
    1,404,509.05/1,938,014.67 = 852,937.91/x
  3. Step 3: Cross multiply
    1,404,509.05x = 1,938,014.67 × 852,937.91
  4. Step 4: Simplify right side
    1,404,509.05x = 1,653,006,172,489.07
  5. Step 5: Solve for x
    x = 1,653,006,172,489.07/1,404,509.05
  6. Step 6: Final answer
    x = 1,176,928.11

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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.