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Finding the Fourth Proportional to 526,800.60, 790,200.90 and 518,927.40

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Solution

The fourth proportional to 526,800.60, 790,200.90 and 518,927.40 is: 778,391.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,800.60 : 790,200.90 = 518,927.40 : x
  2. Step 2: Convert to fraction form
    526,800.60/790,200.90 = 518,927.40/x
  3. Step 3: Cross multiply
    526,800.60x = 790,200.90 × 518,927.40
  4. Step 4: Simplify right side
    526,800.60x = 410,056,898,514.66
  5. Step 5: Solve for x
    x = 410,056,898,514.66/526,800.60
  6. Step 6: Final answer
    x = 778,391.10

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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.