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Finding the Fourth Proportional to 706,205.40, 1,059,308.10 and 374,429.40

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Solution

The fourth proportional to 706,205.40, 1,059,308.10 and 374,429.40 is: 561,644.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    706,205.40 : 1,059,308.10 = 374,429.40 : x
  2. Step 2: Convert to fraction form
    706,205.40/1,059,308.10 = 374,429.40/x
  3. Step 3: Cross multiply
    706,205.40x = 1,059,308.10 × 374,429.40
  4. Step 4: Simplify right side
    706,205.40x = 396,636,096,298.14
  5. Step 5: Solve for x
    x = 396,636,096,298.14/706,205.40
  6. Step 6: Final answer
    x = 561,644.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.