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Finding the Fourth Proportional to 546,865.40, 820,298.10 and 346,536.20

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Solution

The fourth proportional to 546,865.40, 820,298.10 and 346,536.20 is: 519,804.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    546,865.40 : 820,298.10 = 346,536.20 : x
  2. Step 2: Convert to fraction form
    546,865.40/820,298.10 = 346,536.20/x
  3. Step 3: Cross multiply
    546,865.40x = 820,298.10 × 346,536.20
  4. Step 4: Simplify right side
    546,865.40x = 284,262,986,441.22
  5. Step 5: Solve for x
    x = 284,262,986,441.22/546,865.40
  6. Step 6: Final answer
    x = 519,804.30

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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.