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Finding the Fourth Proportional to 590,979,703.60, 886,469,555.40 and 393,708,804.40

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Solution

The fourth proportional to 590,979,703.60, 886,469,555.40 and 393,708,804.40 is: 590,563,206.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    590,979,703.60 : 886,469,555.40 = 393,708,804.40 : x
  2. Step 2: Convert to fraction form
    590,979,703.60/886,469,555.40 = 393,708,804.40/x
  3. Step 3: Cross multiply
    590,979,703.60x = 886,469,555.40 × 393,708,804.40
  4. Step 4: Simplify right side
    590,979,703.60x = 349,010,868,793,533,504
  5. Step 5: Solve for x
    x = 349,010,868,793,533,504/590,979,703.60
  6. Step 6: Final answer
    x = 590,563,206.60

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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.