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Finding the Fourth Proportional to 659,842.66, 990,463.90 and 584,430.75

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Solution

The fourth proportional to 659,842.66, 990,463.90 and 584,430.75 is: 877,266.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,842.66 : 990,463.90 = 584,430.75 : x
  2. Step 2: Convert to fraction form
    659,842.66/990,463.90 = 584,430.75/x
  3. Step 3: Cross multiply
    659,842.66x = 990,463.90 × 584,430.75
  4. Step 4: Simplify right side
    659,842.66x = 578,857,559,924.93
  5. Step 5: Solve for x
    x = 578,857,559,924.93/659,842.66
  6. Step 6: Final answer
    x = 877,266.04

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.