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Finding the Fourth Proportional to 434,069.99, 598,487.28 and 318,998.25

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Solution

The fourth proportional to 434,069.99, 598,487.28 and 318,998.25 is: 439,828.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,069.99 : 598,487.28 = 318,998.25 : x
  2. Step 2: Convert to fraction form
    434,069.99/598,487.28 = 318,998.25/x
  3. Step 3: Cross multiply
    434,069.99x = 598,487.28 × 318,998.25
  4. Step 4: Simplify right side
    434,069.99x = 190,916,395,565.38
  5. Step 5: Solve for x
    x = 190,916,395,565.38/434,069.99
  6. Step 6: Final answer
    x = 439,828.60

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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.