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Finding the Fourth Proportional to 623,999.40, 935,999.10 and 503,730.60

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Solution

The fourth proportional to 623,999.40, 935,999.10 and 503,730.60 is: 755,595.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,999.40 : 935,999.10 = 503,730.60 : x
  2. Step 2: Convert to fraction form
    623,999.40/935,999.10 = 503,730.60/x
  3. Step 3: Cross multiply
    623,999.40x = 935,999.10 × 503,730.60
  4. Step 4: Simplify right side
    623,999.40x = 471,491,388,242.46
  5. Step 5: Solve for x
    x = 471,491,388,242.46/623,999.40
  6. Step 6: Final answer
    x = 755,595.90

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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.