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Finding the Fourth Proportional to 526,411.80, 788,451.30 and 433,099.80

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Solution

The fourth proportional to 526,411.80, 788,451.30 and 433,099.80 is: 648,690.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,411.80 : 788,451.30 = 433,099.80 : x
  2. Step 2: Convert to fraction form
    526,411.80/788,451.30 = 433,099.80/x
  3. Step 3: Cross multiply
    526,411.80x = 788,451.30 × 433,099.80
  4. Step 4: Simplify right side
    526,411.80x = 341,478,100,339.74
  5. Step 5: Solve for x
    x = 341,478,100,339.74/526,411.80
  6. Step 6: Final answer
    x = 648,690.06

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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.