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Finding the Fourth Proportional to 575,782.83, 794,168.96 and 499,164.93

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Solution

The fourth proportional to 575,782.83, 794,168.96 and 499,164.93 is: 688,490.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,782.83 : 794,168.96 = 499,164.93 : x
  2. Step 2: Convert to fraction form
    575,782.83/794,168.96 = 499,164.93/x
  3. Step 3: Cross multiply
    575,782.83x = 794,168.96 × 499,164.93
  4. Step 4: Simplify right side
    575,782.83x = 396,421,290,830.75
  5. Step 5: Solve for x
    x = 396,421,290,830.75/575,782.83
  6. Step 6: Final answer
    x = 688,490.99

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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.