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Finding the Fourth Proportional to 705,569.94, 973,693.31 and 383,286.33

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Solution

The fourth proportional to 705,569.94, 973,693.31 and 383,286.33 is: 528,938.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    705,569.94 : 973,693.31 = 383,286.33 : x
  2. Step 2: Convert to fraction form
    705,569.94/973,693.31 = 383,286.33/x
  3. Step 3: Cross multiply
    705,569.94x = 973,693.31 × 383,286.33
  4. Step 4: Simplify right side
    705,569.94x = 373,203,333,419.02
  5. Step 5: Solve for x
    x = 373,203,333,419.02/705,569.94
  6. Step 6: Final answer
    x = 528,938.82

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Double scale
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1.5x scale

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.