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Finding the Fourth Proportional to 526,431.60, 788,999.40 and 357,951.60

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Solution

The fourth proportional to 526,431.60, 788,999.40 and 357,951.60 is: 536,486.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,431.60 : 788,999.40 = 357,951.60 : x
  2. Step 2: Convert to fraction form
    526,431.60/788,999.40 = 357,951.60/x
  3. Step 3: Cross multiply
    526,431.60x = 788,999.40 × 357,951.60
  4. Step 4: Simplify right side
    526,431.60x = 282,423,597,629.04
  5. Step 5: Solve for x
    x = 282,423,597,629.04/526,431.60
  6. Step 6: Final answer
    x = 536,486.79

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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.