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Finding the Fourth Proportional to 705,316.59, 973,695.38 and 447,456.95

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Solution

The fourth proportional to 705,316.59, 973,695.38 and 447,456.95 is: 617,718.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    705,316.59 : 973,695.38 = 447,456.95 : x
  2. Step 2: Convert to fraction form
    705,316.59/973,695.38 = 447,456.95/x
  3. Step 3: Cross multiply
    705,316.59x = 973,695.38 × 447,456.95
  4. Step 4: Simplify right side
    705,316.59x = 435,686,757,858.13
  5. Step 5: Solve for x
    x = 435,686,757,858.13/705,316.59
  6. Step 6: Final answer
    x = 617,718.01

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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.