Home / 465,331,852.80-697,997,779.20-393,668,236.80

Finding the Fourth Proportional to 465,331,852.80, 697,997,779.20 and 393,668,236.80

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Solution

The fourth proportional to 465,331,852.80, 697,997,779.20 and 393,668,236.80 is: 590,502,355.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    465,331,852.80 : 697,997,779.20 = 393,668,236.80 : x
  2. Step 2: Convert to fraction form
    465,331,852.80/697,997,779.20 = 393,668,236.80/x
  3. Step 3: Cross multiply
    465,331,852.80x = 697,997,779.20 × 393,668,236.80
  4. Step 4: Simplify right side
    465,331,852.80x = 274,779,555,027,979,744
  5. Step 5: Solve for x
    x = 274,779,555,027,979,744/465,331,852.80
  6. Step 6: Final answer
    x = 590,502,355.20

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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.