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Finding the Fourth Proportional to 526,558.46, 790,280.79 and 493,343.40

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Solution

The fourth proportional to 526,558.46, 790,280.79 and 493,343.40 is: 740,430.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,558.46 : 790,280.79 = 493,343.40 : x
  2. Step 2: Convert to fraction form
    526,558.46/790,280.79 = 493,343.40/x
  3. Step 3: Cross multiply
    526,558.46x = 790,280.79 × 493,343.40
  4. Step 4: Simplify right side
    526,558.46x = 389,879,811,893.29
  5. Step 5: Solve for x
    x = 389,879,811,893.29/526,558.46
  6. Step 6: Final answer
    x = 740,430.25

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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.