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Finding the Fourth Proportional to 564,984,940.80, 848,018,620.80 and 292,551,225.60

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Solution

The fourth proportional to 564,984,940.80, 848,018,620.80 and 292,551,225.60 is: 439,107,078.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    564,984,940.80 : 848,018,620.80 = 292,551,225.60 : x
  2. Step 2: Convert to fraction form
    564,984,940.80/848,018,620.80 = 292,551,225.60/x
  3. Step 3: Cross multiply
    564,984,940.80x = 848,018,620.80 × 292,551,225.60
  4. Step 4: Simplify right side
    564,984,940.80x = 248,088,886,846,661,664
  5. Step 5: Solve for x
    x = 248,088,886,846,661,664/564,984,940.80
  6. Step 6: Final answer
    x = 439,107,078.67

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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.