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Finding the Fourth Proportional to 872,580.65, 1,203,757.13 and 510,019.79

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Solution

The fourth proportional to 872,580.65, 1,203,757.13 and 510,019.79 is: 703,591.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    872,580.65 : 1,203,757.13 = 510,019.79 : x
  2. Step 2: Convert to fraction form
    872,580.65/1,203,757.13 = 510,019.79/x
  3. Step 3: Cross multiply
    872,580.65x = 1,203,757.13 × 510,019.79
  4. Step 4: Simplify right side
    872,580.65x = 613,939,953,909.87
  5. Step 5: Solve for x
    x = 613,939,953,909.87/872,580.65
  6. Step 6: Final answer
    x = 703,591.07

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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.