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Finding the Fourth Proportional to 526,893.10, 788,006.85 and 442,912.30

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Solution

The fourth proportional to 526,893.10, 788,006.85 and 442,912.30 is: 662,407.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,893.10 : 788,006.85 = 442,912.30 : x
  2. Step 2: Convert to fraction form
    526,893.10/788,006.85 = 442,912.30/x
  3. Step 3: Cross multiply
    526,893.10x = 788,006.85 × 442,912.30
  4. Step 4: Simplify right side
    526,893.10x = 349,017,926,349.26
  5. Step 5: Solve for x
    x = 349,017,926,349.26/526,893.10
  6. Step 6: Final answer
    x = 662,407.47

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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.