Home / 647,514,624.40-971,271,936.60-453,644,947.60

Finding the Fourth Proportional to 647,514,624.40, 971,271,936.60 and 453,644,947.60

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Solution

The fourth proportional to 647,514,624.40, 971,271,936.60 and 453,644,947.60 is: 680,467,421.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,514,624.40 : 971,271,936.60 = 453,644,947.60 : x
  2. Step 2: Convert to fraction form
    647,514,624.40/971,271,936.60 = 453,644,947.60/x
  3. Step 3: Cross multiply
    647,514,624.40x = 971,271,936.60 × 453,644,947.60
  4. Step 4: Simplify right side
    647,514,624.40x = 440,612,606,784,257,536
  5. Step 5: Solve for x
    x = 440,612,606,784,257,536/647,514,624.40
  6. Step 6: Final answer
    x = 680,467,421.40

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Similar ratio
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1.5x scale

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.