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Finding the Fourth Proportional to 589,294.50, 813,188.13 and 347,521.65

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Solution

The fourth proportional to 589,294.50, 813,188.13 and 347,521.65 is: 479,557.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    589,294.50 : 813,188.13 = 347,521.65 : x
  2. Step 2: Convert to fraction form
    589,294.50/813,188.13 = 347,521.65/x
  3. Step 3: Cross multiply
    589,294.50x = 813,188.13 × 347,521.65
  4. Step 4: Simplify right side
    589,294.50x = 282,600,480,698.02
  5. Step 5: Solve for x
    x = 282,600,480,698.02/589,294.50
  6. Step 6: Final answer
    x = 479,557.30

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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.