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Finding the Fourth Proportional to 572,354.64, 789,852.42 and 357,619.14

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Solution

The fourth proportional to 572,354.64, 789,852.42 and 357,619.14 is: 493,516.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,354.64 : 789,852.42 = 357,619.14 : x
  2. Step 2: Convert to fraction form
    572,354.64/789,852.42 = 357,619.14/x
  3. Step 3: Cross multiply
    572,354.64x = 789,852.42 × 357,619.14
  4. Step 4: Simplify right side
    572,354.64x = 282,466,343,167.32
  5. Step 5: Solve for x
    x = 282,466,343,167.32/572,354.64
  6. Step 6: Final answer
    x = 493,516.30

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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.