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Finding the Fourth Proportional to 370,341.48, 511,070.40 and 200,575.20

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Solution

The fourth proportional to 370,341.48, 511,070.40 and 200,575.20 is: 276,793.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,341.48 : 511,070.40 = 200,575.20 : x
  2. Step 2: Convert to fraction form
    370,341.48/511,070.40 = 200,575.20/x
  3. Step 3: Cross multiply
    370,341.48x = 511,070.40 × 200,575.20
  4. Step 4: Simplify right side
    370,341.48x = 102,508,047,694.08
  5. Step 5: Solve for x
    x = 102,508,047,694.08/370,341.48
  6. Step 6: Final answer
    x = 276,793.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.