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Finding the Fourth Proportional to 654,295.10, 980,713.65 and 254,803.10

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Solution

The fourth proportional to 654,295.10, 980,713.65 and 254,803.10 is: 381,920.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,295.10 : 980,713.65 = 254,803.10 : x
  2. Step 2: Convert to fraction form
    654,295.10/980,713.65 = 254,803.10/x
  3. Step 3: Cross multiply
    654,295.10x = 980,713.65 × 254,803.10
  4. Step 4: Simplify right side
    654,295.10x = 249,888,878,232.32
  5. Step 5: Solve for x
    x = 249,888,878,232.32/654,295.10
  6. Step 6: Final answer
    x = 381,920.75

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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.