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Finding the Fourth Proportional to 314,929,123.80, 472,393,685.70 and 300,580,216.80

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Solution

The fourth proportional to 314,929,123.80, 472,393,685.70 and 300,580,216.80 is: 450,870,325.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,929,123.80 : 472,393,685.70 = 300,580,216.80 : x
  2. Step 2: Convert to fraction form
    314,929,123.80/472,393,685.70 = 300,580,216.80/x
  3. Step 3: Cross multiply
    314,929,123.80x = 472,393,685.70 × 300,580,216.80
  4. Step 4: Simplify right side
    314,929,123.80x = 141,992,196,462,657,056
  5. Step 5: Solve for x
    x = 141,992,196,462,657,056/314,929,123.80
  6. Step 6: Final answer
    x = 450,870,325.20

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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.