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Finding the Fourth Proportional to 642,597.80, 886,882.64 and 410,125.07

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Solution

The fourth proportional to 642,597.80, 886,882.64 and 410,125.07 is: 566,034.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,597.80 : 886,882.64 = 410,125.07 : x
  2. Step 2: Convert to fraction form
    642,597.80/886,882.64 = 410,125.07/x
  3. Step 3: Cross multiply
    642,597.80x = 886,882.64 × 410,125.07
  4. Step 4: Simplify right side
    642,597.80x = 363,732,804,811.79
  5. Step 5: Solve for x
    x = 363,732,804,811.79/642,597.80
  6. Step 6: Final answer
    x = 566,034.94

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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.