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Finding the Fourth Proportional to 363,042.80, 543,397.80 and 258,066.80

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Solution

The fourth proportional to 363,042.80, 543,397.80 and 258,066.80 is: 386,271.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,042.80 : 543,397.80 = 258,066.80 : x
  2. Step 2: Convert to fraction form
    363,042.80/543,397.80 = 258,066.80/x
  3. Step 3: Cross multiply
    363,042.80x = 543,397.80 × 258,066.80
  4. Step 4: Simplify right side
    363,042.80x = 140,232,931,373.04
  5. Step 5: Solve for x
    x = 140,232,931,373.04/363,042.80
  6. Step 6: Final answer
    x = 386,271.07

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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.