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Finding the Fourth Proportional to 707,197.34, 975,491.61 and 431,429.19

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Solution

The fourth proportional to 707,197.34, 975,491.61 and 431,429.19 is: 595,103.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    707,197.34 : 975,491.61 = 431,429.19 : x
  2. Step 2: Convert to fraction form
    707,197.34/975,491.61 = 431,429.19/x
  3. Step 3: Cross multiply
    707,197.34x = 975,491.61 × 431,429.19
  4. Step 4: Simplify right side
    707,197.34x = 420,855,555,154.10
  5. Step 5: Solve for x
    x = 420,855,555,154.10/707,197.34
  6. Step 6: Final answer
    x = 595,103.42

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Double scale
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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.