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Finding the Fourth Proportional to 328,482.20, 492,723.30 and 249,750.20

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Solution

The fourth proportional to 328,482.20, 492,723.30 and 249,750.20 is: 374,625.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,482.20 : 492,723.30 = 249,750.20 : x
  2. Step 2: Convert to fraction form
    328,482.20/492,723.30 = 249,750.20/x
  3. Step 3: Cross multiply
    328,482.20x = 492,723.30 × 249,750.20
  4. Step 4: Simplify right side
    328,482.20x = 123,057,742,719.66
  5. Step 5: Solve for x
    x = 123,057,742,719.66/328,482.20
  6. Step 6: Final answer
    x = 374,625.30

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Similar ratio
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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.