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Finding the Fourth Proportional to 594,620,999.80, 891,931,499.70 and 439,652,804.20

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Solution

The fourth proportional to 594,620,999.80, 891,931,499.70 and 439,652,804.20 is: 659,479,206.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    594,620,999.80 : 891,931,499.70 = 439,652,804.20 : x
  2. Step 2: Convert to fraction form
    594,620,999.80/891,931,499.70 = 439,652,804.20/x
  3. Step 3: Cross multiply
    594,620,999.80x = 891,931,499.70 × 439,652,804.20
  4. Step 4: Simplify right side
    594,620,999.80x = 392,140,184,997,416,448
  5. Step 5: Solve for x
    x = 392,140,184,997,416,448/594,620,999.80
  6. Step 6: Final answer
    x = 659,479,206.30

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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.