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Finding the Fourth Proportional to 562,239.56, 775,889.80 and 307,590.76

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Solution

The fourth proportional to 562,239.56, 775,889.80 and 307,590.76 is: 424,474.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,239.56 : 775,889.80 = 307,590.76 : x
  2. Step 2: Convert to fraction form
    562,239.56/775,889.80 = 307,590.76/x
  3. Step 3: Cross multiply
    562,239.56x = 775,889.80 × 307,590.76
  4. Step 4: Simplify right side
    562,239.56x = 238,656,533,258.25
  5. Step 5: Solve for x
    x = 238,656,533,258.25/562,239.56
  6. Step 6: Final answer
    x = 424,474.82

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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.