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Finding the Fourth Proportional to 562,573.26, 776,358.40 and 307,918.98

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Solution

The fourth proportional to 562,573.26, 776,358.40 and 307,918.98 is: 424,932.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,573.26 : 776,358.40 = 307,918.98 : x
  2. Step 2: Convert to fraction form
    562,573.26/776,358.40 = 307,918.98/x
  3. Step 3: Cross multiply
    562,573.26x = 776,358.40 × 307,918.98
  4. Step 4: Simplify right side
    562,573.26x = 239,055,486,642.43
  5. Step 5: Solve for x
    x = 239,055,486,642.43/562,573.26
  6. Step 6: Final answer
    x = 424,932.19

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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.