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Finding the Fourth Proportional to 567,485.94, 783,136.02 and 312,846.24

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Solution

The fourth proportional to 567,485.94, 783,136.02 and 312,846.24 is: 431,730.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,485.94 : 783,136.02 = 312,846.24 : x
  2. Step 2: Convert to fraction form
    567,485.94/783,136.02 = 312,846.24/x
  3. Step 3: Cross multiply
    567,485.94x = 783,136.02 × 312,846.24
  4. Step 4: Simplify right side
    567,485.94x = 245,001,159,265.57
  5. Step 5: Solve for x
    x = 245,001,159,265.57/567,485.94
  6. Step 6: Final answer
    x = 431,730.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.