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Finding the Fourth Proportional to 402,942,303.60, 604,413,455.40 and 370,693,676.40

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Solution

The fourth proportional to 402,942,303.60, 604,413,455.40 and 370,693,676.40 is: 556,040,514.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,942,303.60 : 604,413,455.40 = 370,693,676.40 : x
  2. Step 2: Convert to fraction form
    402,942,303.60/604,413,455.40 = 370,693,676.40/x
  3. Step 3: Cross multiply
    402,942,303.60x = 604,413,455.40 × 370,693,676.40
  4. Step 4: Simplify right side
    402,942,303.60x = 224,052,245,847,853,408
  5. Step 5: Solve for x
    x = 224,052,245,847,853,408/402,942,303.60
  6. Step 6: Final answer
    x = 556,040,514.60

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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.