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Finding the Fourth Proportional to 624,059,812.20, 936,089,718.30 and 469,871,063.40

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Solution

The fourth proportional to 624,059,812.20, 936,089,718.30 and 469,871,063.40 is: 704,806,595.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,059,812.20 : 936,089,718.30 = 469,871,063.40 : x
  2. Step 2: Convert to fraction form
    624,059,812.20/936,089,718.30 = 469,871,063.40/x
  3. Step 3: Cross multiply
    624,059,812.20x = 936,089,718.30 × 469,871,063.40
  4. Step 4: Simplify right side
    624,059,812.20x = 439,841,471,375,427,392
  5. Step 5: Solve for x
    x = 439,841,471,375,427,392/624,059,812.20
  6. Step 6: Final answer
    x = 704,806,595.10

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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.