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Finding the Fourth Proportional to 911,345.40, 1,257,694.86 and 524,160.93

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Solution

The fourth proportional to 911,345.40, 1,257,694.86 and 524,160.93 is: 723,364.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    911,345.40 : 1,257,694.86 = 524,160.93 : x
  2. Step 2: Convert to fraction form
    911,345.40/1,257,694.86 = 524,160.93/x
  3. Step 3: Cross multiply
    911,345.40x = 1,257,694.86 × 524,160.93
  4. Step 4: Simplify right side
    911,345.40x = 659,234,507,473.82
  5. Step 5: Solve for x
    x = 659,234,507,473.82/911,345.40
  6. Step 6: Final answer
    x = 723,364.06

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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.