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Finding the Fourth Proportional to 337,813.80, 506,720.70 and 310,257.60

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Solution

The fourth proportional to 337,813.80, 506,720.70 and 310,257.60 is: 465,386.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    337,813.80 : 506,720.70 = 310,257.60 : x
  2. Step 2: Convert to fraction form
    337,813.80/506,720.70 = 310,257.60/x
  3. Step 3: Cross multiply
    337,813.80x = 506,720.70 × 310,257.60
  4. Step 4: Simplify right side
    337,813.80x = 157,213,948,252.32
  5. Step 5: Solve for x
    x = 157,213,948,252.32/337,813.80
  6. Step 6: Final answer
    x = 465,386.40

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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.