Home / 658,619.46-908,895.78-356,813.46

Finding the Fourth Proportional to 658,619.46, 908,895.78 and 356,813.46

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Solution

The fourth proportional to 658,619.46, 908,895.78 and 356,813.46 is: 492,403.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,619.46 : 908,895.78 = 356,813.46 : x
  2. Step 2: Convert to fraction form
    658,619.46/908,895.78 = 356,813.46/x
  3. Step 3: Cross multiply
    658,619.46x = 908,895.78 × 356,813.46
  4. Step 4: Simplify right side
    658,619.46x = 324,306,248,041.20
  5. Step 5: Solve for x
    x = 324,306,248,041.20/658,619.46
  6. Step 6: Final answer
    x = 492,403.08

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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.