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Finding the Fourth Proportional to 924,356.88, 1,275,485.54 and 516,407.67

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Solution

The fourth proportional to 924,356.88, 1,275,485.54 and 516,407.67 is: 712,571.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    924,356.88 : 1,275,485.54 = 516,407.67 : x
  2. Step 2: Convert to fraction form
    924,356.88/1,275,485.54 = 516,407.67/x
  3. Step 3: Cross multiply
    924,356.88x = 1,275,485.54 × 516,407.67
  4. Step 4: Simplify right side
    924,356.88x = 658,670,513,248.05
  5. Step 5: Solve for x
    x = 658,670,513,248.05/924,356.88
  6. Step 6: Final answer
    x = 712,571.66

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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.