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Finding the Fourth Proportional to 575,644,641.46, 794,389,606.47 and 311,326,634.48

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Solution

The fourth proportional to 575,644,641.46, 794,389,606.47 and 311,326,634.48 is: 429,630,756.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,644,641.46 : 794,389,606.47 = 311,326,634.48 : x
  2. Step 2: Convert to fraction form
    575,644,641.46/794,389,606.47 = 311,326,634.48/x
  3. Step 3: Cross multiply
    575,644,641.46x = 794,389,606.47 × 311,326,634.48
  4. Step 4: Simplify right side
    575,644,641.46x = 247,314,642,651,193,376
  5. Step 5: Solve for x
    x = 247,314,642,651,193,376/575,644,641.46
  6. Step 6: Final answer
    x = 429,630,756.27

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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.