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Finding the Fourth Proportional to 567,613.48, 783,325.50 and 338,139.40

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Solution

The fourth proportional to 567,613.48, 783,325.50 and 338,139.40 is: 466,643.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,613.48 : 783,325.50 = 338,139.40 : x
  2. Step 2: Convert to fraction form
    567,613.48/783,325.50 = 338,139.40/x
  3. Step 3: Cross multiply
    567,613.48x = 783,325.50 × 338,139.40
  4. Step 4: Simplify right side
    567,613.48x = 264,873,214,574.70
  5. Step 5: Solve for x
    x = 264,873,214,574.70/567,613.48
  6. Step 6: Final answer
    x = 466,643.63

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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.