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Finding the Fourth Proportional to 672,339.10, 943,636.70 and 672,339.10

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Solution

The fourth proportional to 672,339.10, 943,636.70 and 672,339.10 is: 943,636.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,339.10 : 943,636.70 = 672,339.10 : x
  2. Step 2: Convert to fraction form
    672,339.10/943,636.70 = 672,339.10/x
  3. Step 3: Cross multiply
    672,339.10x = 943,636.70 × 672,339.10
  4. Step 4: Simplify right side
    672,339.10x = 634,443,849,604.97
  5. Step 5: Solve for x
    x = 634,443,849,604.97/672,339.10
  6. Step 6: Final answer
    x = 943,636.70

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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.