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Finding the Fourth Proportional to 524,154.90, 786,232.35 and 489,162.90

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Solution

The fourth proportional to 524,154.90, 786,232.35 and 489,162.90 is: 733,744.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    524,154.90 : 786,232.35 = 489,162.90 : x
  2. Step 2: Convert to fraction form
    524,154.90/786,232.35 = 489,162.90/x
  3. Step 3: Cross multiply
    524,154.90x = 786,232.35 × 489,162.90
  4. Step 4: Simplify right side
    524,154.90x = 384,595,696,399.82
  5. Step 5: Solve for x
    x = 384,595,696,399.82/524,154.90
  6. Step 6: Final answer
    x = 733,744.35

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.