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Finding the Fourth Proportional to 403,643,000.20, 565,482,837.80 and 403,643,000.20

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Solution

The fourth proportional to 403,643,000.20, 565,482,837.80 and 403,643,000.20 is: 565,482,837.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,643,000.20 : 565,482,837.80 = 403,643,000.20 : x
  2. Step 2: Convert to fraction form
    403,643,000.20/565,482,837.80 = 403,643,000.20/x
  3. Step 3: Cross multiply
    403,643,000.20x = 565,482,837.80 × 403,643,000.20
  4. Step 4: Simplify right side
    403,643,000.20x = 228,253,189,211,201,952
  5. Step 5: Solve for x
    x = 228,253,189,211,201,952/403,643,000.20
  6. Step 6: Final answer
    x = 565,482,837.80

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.