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Finding the Fourth Proportional to 684,768,014.88, 944,981,672.40 and 371,502,218.88

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Solution

The fourth proportional to 684,768,014.88, 944,981,672.40 and 371,502,218.88 is: 512,674,045.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,768,014.88 : 944,981,672.40 = 371,502,218.88 : x
  2. Step 2: Convert to fraction form
    684,768,014.88/944,981,672.40 = 371,502,218.88/x
  3. Step 3: Cross multiply
    684,768,014.88x = 944,981,672.40 × 371,502,218.88
  4. Step 4: Simplify right side
    684,768,014.88x = 351,062,788,097,533,248
  5. Step 5: Solve for x
    x = 351,062,788,097,533,248/684,768,014.88
  6. Step 6: Final answer
    x = 512,674,045.03

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.