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Finding the Fourth Proportional to 527,230.40, 790,845.60 and 401,259.20

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Solution

The fourth proportional to 527,230.40, 790,845.60 and 401,259.20 is: 601,888.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,230.40 : 790,845.60 = 401,259.20 : x
  2. Step 2: Convert to fraction form
    527,230.40/790,845.60 = 401,259.20/x
  3. Step 3: Cross multiply
    527,230.40x = 790,845.60 × 401,259.20
  4. Step 4: Simplify right side
    527,230.40x = 317,334,072,779.52
  5. Step 5: Solve for x
    x = 317,334,072,779.52/527,230.40
  6. Step 6: Final answer
    x = 601,888.80

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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.