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Finding the Fourth Proportional to 924,620.75, 1,275,866.13 and 511,101.68

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Solution

The fourth proportional to 924,620.75, 1,275,866.13 and 511,101.68 is: 705,259.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    924,620.75 : 1,275,866.13 = 511,101.68 : x
  2. Step 2: Convert to fraction form
    924,620.75/1,275,866.13 = 511,101.68/x
  3. Step 3: Cross multiply
    924,620.75x = 1,275,866.13 × 511,101.68
  4. Step 4: Simplify right side
    924,620.75x = 652,097,316,118.77
  5. Step 5: Solve for x
    x = 652,097,316,118.77/924,620.75
  6. Step 6: Final answer
    x = 705,259.23

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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.