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Finding the Fourth Proportional to 385,220.10, 577,830.15 and 175,268.10

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Solution

The fourth proportional to 385,220.10, 577,830.15 and 175,268.10 is: 262,902.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,220.10 : 577,830.15 = 175,268.10 : x
  2. Step 2: Convert to fraction form
    385,220.10/577,830.15 = 175,268.10/x
  3. Step 3: Cross multiply
    385,220.10x = 577,830.15 × 175,268.10
  4. Step 4: Simplify right side
    385,220.10x = 101,275,192,513.22
  5. Step 5: Solve for x
    x = 101,275,192,513.22/385,220.10
  6. Step 6: Final answer
    x = 262,902.15

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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.