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Finding the Fourth Proportional to 562,834.07, 776,703.28 and 308,185.23

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Solution

The fourth proportional to 562,834.07, 776,703.28 and 308,185.23 is: 425,291.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,834.07 : 776,703.28 = 308,185.23 : x
  2. Step 2: Convert to fraction form
    562,834.07/776,703.28 = 308,185.23/x
  3. Step 3: Cross multiply
    562,834.07x = 776,703.28 × 308,185.23
  4. Step 4: Simplify right side
    562,834.07x = 239,368,478,988.55
  5. Step 5: Solve for x
    x = 239,368,478,988.55/562,834.07
  6. Step 6: Final answer
    x = 425,291.38

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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.