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Finding the Fourth Proportional to 395,929,803.20, 593,894,704.80 and 266,935,294.40

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Solution

The fourth proportional to 395,929,803.20, 593,894,704.80 and 266,935,294.40 is: 400,402,941.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,929,803.20 : 593,894,704.80 = 266,935,294.40 : x
  2. Step 2: Convert to fraction form
    395,929,803.20/593,894,704.80 = 266,935,294.40/x
  3. Step 3: Cross multiply
    395,929,803.20x = 593,894,704.80 × 266,935,294.40
  4. Step 4: Simplify right side
    395,929,803.20x = 158,531,457,868,389,088
  5. Step 5: Solve for x
    x = 158,531,457,868,389,088/395,929,803.20
  6. Step 6: Final answer
    x = 400,402,941.60

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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.