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Finding the Fourth Proportional to 565,492,027.60, 848,238,041.40 and 391,152,807.55

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Solution

The fourth proportional to 565,492,027.60, 848,238,041.40 and 391,152,807.55 is: 586,729,211.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    565,492,027.60 : 848,238,041.40 = 391,152,807.55 : x
  2. Step 2: Convert to fraction form
    565,492,027.60/848,238,041.40 = 391,152,807.55/x
  3. Step 3: Cross multiply
    565,492,027.60x = 848,238,041.40 × 391,152,807.55
  4. Step 4: Simplify right side
    565,492,027.60x = 331,790,691,364,323,136
  5. Step 5: Solve for x
    x = 331,790,691,364,323,136/565,492,027.60
  6. Step 6: Final answer
    x = 586,729,211.33

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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.