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Finding the Fourth Proportional to 439,306.55, 606,235.82 and 245,718.77

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Solution

The fourth proportional to 439,306.55, 606,235.82 and 245,718.77 is: 339,087.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,306.55 : 606,235.82 = 245,718.77 : x
  2. Step 2: Convert to fraction form
    439,306.55/606,235.82 = 245,718.77/x
  3. Step 3: Cross multiply
    439,306.55x = 606,235.82 × 245,718.77
  4. Step 4: Simplify right side
    439,306.55x = 148,963,520,307.34
  5. Step 5: Solve for x
    x = 148,963,520,307.34/439,306.55
  6. Step 6: Final answer
    x = 339,087.87

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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.