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Finding the Fourth Proportional to 572,361.48, 789,852.98 and 317,706.12

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Solution

The fourth proportional to 572,361.48, 789,852.98 and 317,706.12 is: 438,431.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,361.48 : 789,852.98 = 317,706.12 : x
  2. Step 2: Convert to fraction form
    572,361.48/789,852.98 = 317,706.12/x
  3. Step 3: Cross multiply
    572,361.48x = 789,852.98 × 317,706.12
  4. Step 4: Simplify right side
    572,361.48x = 250,941,125,646.24
  5. Step 5: Solve for x
    x = 250,941,125,646.24/572,361.48
  6. Step 6: Final answer
    x = 438,431.19

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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.