Home / 686,558,298.24-947,443,770.68-373,292,511.39

Finding the Fourth Proportional to 686,558,298.24, 947,443,770.68 and 373,292,511.39

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Solution

The fourth proportional to 686,558,298.24, 947,443,770.68 and 373,292,511.39 is: 515,140,033.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    686,558,298.24 : 947,443,770.68 = 373,292,511.39 : x
  2. Step 2: Convert to fraction form
    686,558,298.24/947,443,770.68 = 373,292,511.39/x
  3. Step 3: Cross multiply
    686,558,298.24x = 947,443,770.68 × 373,292,511.39
  4. Step 4: Simplify right side
    686,558,298.24x = 353,673,664,556,081,984
  5. Step 5: Solve for x
    x = 353,673,664,556,081,984/686,558,298.24
  6. Step 6: Final answer
    x = 515,140,033.21

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1.5x scale

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.