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Finding the Fourth Proportional to 425,281.86, 586,913.58 and 243,992.25

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Solution

The fourth proportional to 425,281.86, 586,913.58 and 243,992.25 is: 336,723.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,281.86 : 586,913.58 = 243,992.25 : x
  2. Step 2: Convert to fraction form
    425,281.86/586,913.58 = 243,992.25/x
  3. Step 3: Cross multiply
    425,281.86x = 586,913.58 × 243,992.25
  4. Step 4: Simplify right side
    425,281.86x = 143,202,364,939.76
  5. Step 5: Solve for x
    x = 143,202,364,939.76/425,281.86
  6. Step 6: Final answer
    x = 336,723.43

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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.