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Finding the Fourth Proportional to 705,607.09, 973,746.07 and 383,322.26

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Solution

The fourth proportional to 705,607.09, 973,746.07 and 383,322.26 is: 528,989.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    705,607.09 : 973,746.07 = 383,322.26 : x
  2. Step 2: Convert to fraction form
    705,607.09/973,746.07 = 383,322.26/x
  3. Step 3: Cross multiply
    705,607.09x = 973,746.07 × 383,322.26
  4. Step 4: Simplify right side
    705,607.09x = 373,258,545,694.58
  5. Step 5: Solve for x
    x = 373,258,545,694.58/705,607.09
  6. Step 6: Final answer
    x = 528,989.22

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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.