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Finding the Fourth Proportional to 562,086.18, 775,697.40 and 307,437.36

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Solution

The fourth proportional to 562,086.18, 775,697.40 and 307,437.36 is: 424,273.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,086.18 : 775,697.40 = 307,437.36 : x
  2. Step 2: Convert to fraction form
    562,086.18/775,697.40 = 307,437.36/x
  3. Step 3: Cross multiply
    562,086.18x = 775,697.40 × 307,437.36
  4. Step 4: Simplify right side
    562,086.18x = 238,478,360,814.86
  5. Step 5: Solve for x
    x = 238,478,360,814.86/562,086.18
  6. Step 6: Final answer
    x = 424,273.66

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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.