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Finding the Fourth Proportional to 575,465.78, 794,124.54 and 317,353.61

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Solution

The fourth proportional to 575,465.78, 794,124.54 and 317,353.61 is: 437,937.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,465.78 : 794,124.54 = 317,353.61 : x
  2. Step 2: Convert to fraction form
    575,465.78/794,124.54 = 317,353.61/x
  3. Step 3: Cross multiply
    575,465.78x = 794,124.54 × 317,353.61
  4. Step 4: Simplify right side
    575,465.78x = 252,018,291,543.90
  5. Step 5: Solve for x
    x = 252,018,291,543.90/575,465.78
  6. Step 6: Final answer
    x = 437,937.93

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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.