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Finding the Fourth Proportional to 673,985,629.20, 946,300,858.80 and 673,985,629.20

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Solution

The fourth proportional to 673,985,629.20, 946,300,858.80 and 673,985,629.20 is: 946,300,858.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    673,985,629.20 : 946,300,858.80 = 673,985,629.20 : x
  2. Step 2: Convert to fraction form
    673,985,629.20/946,300,858.80 = 673,985,629.20/x
  3. Step 3: Cross multiply
    673,985,629.20x = 946,300,858.80 × 673,985,629.20
  4. Step 4: Simplify right side
    673,985,629.20x = 637,793,179,730,818,432
  5. Step 5: Solve for x
    x = 637,793,179,730,818,432/673,985,629.20
  6. Step 6: Final answer
    x = 946,300,858.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.