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Finding the Fourth Proportional to 756,307.70, 1,059,618.10 and 756,307.70

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Solution

The fourth proportional to 756,307.70, 1,059,618.10 and 756,307.70 is: 1,059,618.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    756,307.70 : 1,059,618.10 = 756,307.70 : x
  2. Step 2: Convert to fraction form
    756,307.70/1,059,618.10 = 756,307.70/x
  3. Step 3: Cross multiply
    756,307.70x = 1,059,618.10 × 756,307.70
  4. Step 4: Simplify right side
    756,307.70x = 801,397,328,089.37
  5. Step 5: Solve for x
    x = 801,397,328,089.37/756,307.70
  6. Step 6: Final answer
    x = 1,059,618.10

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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.