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Finding the Fourth Proportional to 908,892, 1,254,279.68 and 501,009.52

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Solution

The fourth proportional to 908,892, 1,254,279.68 and 501,009.52 is: 691,397.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    908,892 : 1,254,279.68 = 501,009.52 : x
  2. Step 2: Convert to fraction form
    908,892/1,254,279.68 = 501,009.52/x
  3. Step 3: Cross multiply
    908,892x = 1,254,279.68 × 501,009.52
  4. Step 4: Simplify right side
    908,892x = 628,406,060,422.55
  5. Step 5: Solve for x
    x = 628,406,060,422.55/908,892
  6. Step 6: Final answer
    x = 691,397.94

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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.