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Finding the Fourth Proportional to 438,583.48, 657,197.11 and 342,292.38

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Solution

The fourth proportional to 438,583.48, 657,197.11 and 342,292.38 is: 512,909.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,583.48 : 657,197.11 = 342,292.38 : x
  2. Step 2: Convert to fraction form
    438,583.48/657,197.11 = 342,292.38/x
  3. Step 3: Cross multiply
    438,583.48x = 657,197.11 × 342,292.38
  4. Step 4: Simplify right side
    438,583.48x = 224,953,563,338.89
  5. Step 5: Solve for x
    x = 224,953,563,338.89/438,583.48
  6. Step 6: Final answer
    x = 512,909.34

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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.