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Finding the Fourth Proportional to 562,684.70, 776,503.59 and 308,033.66

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Solution

The fourth proportional to 562,684.70, 776,503.59 and 308,033.66 is: 425,085.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,684.70 : 776,503.59 = 308,033.66 : x
  2. Step 2: Convert to fraction form
    562,684.70/776,503.59 = 308,033.66/x
  3. Step 3: Cross multiply
    562,684.70x = 776,503.59 × 308,033.66
  4. Step 4: Simplify right side
    562,684.70x = 239,189,242,830.84
  5. Step 5: Solve for x
    x = 239,189,242,830.84/562,684.70
  6. Step 6: Final answer
    x = 425,085.74

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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.