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Finding the Fourth Proportional to 295,990,963.40, 443,986,445.10 and 291,456,000.20

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Solution

The fourth proportional to 295,990,963.40, 443,986,445.10 and 291,456,000.20 is: 437,184,000.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,990,963.40 : 443,986,445.10 = 291,456,000.20 : x
  2. Step 2: Convert to fraction form
    295,990,963.40/443,986,445.10 = 291,456,000.20/x
  3. Step 3: Cross multiply
    295,990,963.40x = 443,986,445.10 × 291,456,000.20
  4. Step 4: Simplify right side
    295,990,963.40x = 129,402,513,431,862,896
  5. Step 5: Solve for x
    x = 129,402,513,431,862,896/295,990,963.40
  6. Step 6: Final answer
    x = 437,184,000.30

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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.