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Finding the Fourth Proportional to 426,870.63, 589,118.75 and 235,920.92

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Solution

The fourth proportional to 426,870.63, 589,118.75 and 235,920.92 is: 325,591.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,870.63 : 589,118.75 = 235,920.92 : x
  2. Step 2: Convert to fraction form
    426,870.63/589,118.75 = 235,920.92/x
  3. Step 3: Cross multiply
    426,870.63x = 589,118.75 × 235,920.92
  4. Step 4: Simplify right side
    426,870.63x = 138,985,433,364.05
  5. Step 5: Solve for x
    x = 138,985,433,364.05/426,870.63
  6. Step 6: Final answer
    x = 325,591.46

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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.