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Finding the Fourth Proportional to 853,986, 1,178,500.68 and 514,524.72

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Solution

The fourth proportional to 853,986, 1,178,500.68 and 514,524.72 is: 710,044.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    853,986 : 1,178,500.68 = 514,524.72 : x
  2. Step 2: Convert to fraction form
    853,986/1,178,500.68 = 514,524.72/x
  3. Step 3: Cross multiply
    853,986x = 1,178,500.68 × 514,524.72
  4. Step 4: Simplify right side
    853,986x = 606,367,732,396.81
  5. Step 5: Solve for x
    x = 606,367,732,396.81/853,986
  6. Step 6: Final answer
    x = 710,044.11

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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.