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Finding the Fourth Proportional to 565,438,454.40, 848,157,681.60 and 393,251,570.40

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Solution

The fourth proportional to 565,438,454.40, 848,157,681.60 and 393,251,570.40 is: 589,877,355.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    565,438,454.40 : 848,157,681.60 = 393,251,570.40 : x
  2. Step 2: Convert to fraction form
    565,438,454.40/848,157,681.60 = 393,251,570.40/x
  3. Step 3: Cross multiply
    565,438,454.40x = 848,157,681.60 × 393,251,570.40
  4. Step 4: Simplify right side
    565,438,454.40x = 333,539,340,236,023,168
  5. Step 5: Solve for x
    x = 333,539,340,236,023,168/565,438,454.40
  6. Step 6: Final answer
    x = 589,877,355.60

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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.