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Finding the Fourth Proportional to 526,931.60, 788,647.80 and 526,931.60

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Solution

The fourth proportional to 526,931.60, 788,647.80 and 526,931.60 is: 788,647.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,931.60 : 788,647.80 = 526,931.60 : x
  2. Step 2: Convert to fraction form
    526,931.60/788,647.80 = 526,931.60/x
  3. Step 3: Cross multiply
    526,931.60x = 788,647.80 × 526,931.60
  4. Step 4: Simplify right side
    526,931.60x = 415,563,447,090.48
  5. Step 5: Solve for x
    x = 415,563,447,090.48/526,931.60
  6. Step 6: Final answer
    x = 788,647.80

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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.