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Finding the Fourth Proportional to 526,849.60, 790,533.60 and 400,446.40

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Solution

The fourth proportional to 526,849.60, 790,533.60 and 400,446.40 is: 600,866.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,849.60 : 790,533.60 = 400,446.40 : x
  2. Step 2: Convert to fraction form
    526,849.60/790,533.60 = 400,446.40/x
  3. Step 3: Cross multiply
    526,849.60x = 790,533.60 × 400,446.40
  4. Step 4: Simplify right side
    526,849.60x = 316,566,334,199.04
  5. Step 5: Solve for x
    x = 316,566,334,199.04/526,849.60
  6. Step 6: Final answer
    x = 600,866.61

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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.