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Finding the Fourth Proportional to 705,361.36, 973,398.45 and 383,071.54

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Solution

The fourth proportional to 705,361.36, 973,398.45 and 383,071.54 is: 528,638.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    705,361.36 : 973,398.45 = 383,071.54 : x
  2. Step 2: Convert to fraction form
    705,361.36/973,398.45 = 383,071.54/x
  3. Step 3: Cross multiply
    705,361.36x = 973,398.45 × 383,071.54
  4. Step 4: Simplify right side
    705,361.36x = 372,881,243,275.11
  5. Step 5: Solve for x
    x = 372,881,243,275.11/705,361.36
  6. Step 6: Final answer
    x = 528,638.60

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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.