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Finding the Fourth Proportional to 549,940.30, 823,926.30 and 471,208.30

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Solution

The fourth proportional to 549,940.30, 823,926.30 and 471,208.30 is: 705,969.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,940.30 : 823,926.30 = 471,208.30 : x
  2. Step 2: Convert to fraction form
    549,940.30/823,926.30 = 471,208.30/x
  3. Step 3: Cross multiply
    549,940.30x = 823,926.30 × 471,208.30
  4. Step 4: Simplify right side
    549,940.30x = 388,240,911,148.29
  5. Step 5: Solve for x
    x = 388,240,911,148.29/549,940.30
  6. Step 6: Final answer
    x = 705,969.20

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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.