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Finding the Fourth Proportional to 649,289.45, 896,017.21 and 362,809.53

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Solution

The fourth proportional to 649,289.45, 896,017.21 and 362,809.53 is: 500,675.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,289.45 : 896,017.21 = 362,809.53 : x
  2. Step 2: Convert to fraction form
    649,289.45/896,017.21 = 362,809.53/x
  3. Step 3: Cross multiply
    649,289.45x = 896,017.21 × 362,809.53
  4. Step 4: Simplify right side
    649,289.45x = 325,083,581,924.99
  5. Step 5: Solve for x
    x = 325,083,581,924.99/649,289.45
  6. Step 6: Final answer
    x = 500,675.90

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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.