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Finding the Fourth Proportional to 476,604,802.40, 714,907,203.60 and 169,906,920.80

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Solution

The fourth proportional to 476,604,802.40, 714,907,203.60 and 169,906,920.80 is: 254,860,381.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,604,802.40 : 714,907,203.60 = 169,906,920.80 : x
  2. Step 2: Convert to fraction form
    476,604,802.40/714,907,203.60 = 169,906,920.80/x
  3. Step 3: Cross multiply
    476,604,802.40x = 714,907,203.60 × 169,906,920.80
  4. Step 4: Simplify right side
    476,604,802.40x = 121,467,681,621,414,688
  5. Step 5: Solve for x
    x = 121,467,681,621,414,688/476,604,802.40
  6. Step 6: Final answer
    x = 254,860,381.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.