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Finding the Fourth Proportional to 705,585.84, 973,787.88 and 399,683.04

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Solution

The fourth proportional to 705,585.84, 973,787.88 and 399,683.04 is: 551,607.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    705,585.84 : 973,787.88 = 399,683.04 : x
  2. Step 2: Convert to fraction form
    705,585.84/973,787.88 = 399,683.04/x
  3. Step 3: Cross multiply
    705,585.84x = 973,787.88 × 399,683.04
  4. Step 4: Simplify right side
    705,585.84x = 389,206,500,193.56
  5. Step 5: Solve for x
    x = 389,206,500,193.56/705,585.84
  6. Step 6: Final answer
    x = 551,607.58

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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.