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Finding the Fourth Proportional to 526,009.60, 789,014.40 and 365,046.40

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Solution

The fourth proportional to 526,009.60, 789,014.40 and 365,046.40 is: 547,569.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,009.60 : 789,014.40 = 365,046.40 : x
  2. Step 2: Convert to fraction form
    526,009.60/789,014.40 = 365,046.40/x
  3. Step 3: Cross multiply
    526,009.60x = 789,014.40 × 365,046.40
  4. Step 4: Simplify right side
    526,009.60x = 288,026,866,268.16
  5. Step 5: Solve for x
    x = 288,026,866,268.16/526,009.60
  6. Step 6: Final answer
    x = 547,569.60

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Double scale
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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.