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Finding the Fourth Proportional to 505,973.17, 698,243.66 and 291,108.93

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Solution

The fourth proportional to 505,973.17, 698,243.66 and 291,108.93 is: 401,730.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,973.17 : 698,243.66 = 291,108.93 : x
  2. Step 2: Convert to fraction form
    505,973.17/698,243.66 = 291,108.93/x
  3. Step 3: Cross multiply
    505,973.17x = 698,243.66 × 291,108.93
  4. Step 4: Simplify right side
    505,973.17x = 203,264,964,741.88
  5. Step 5: Solve for x
    x = 203,264,964,741.88/505,973.17
  6. Step 6: Final answer
    x = 401,730.72

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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.