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Finding the Fourth Proportional to 615,137,334.15, 848,798,203.15 and 373,607,621.90

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Solution

The fourth proportional to 615,137,334.15, 848,798,203.15 and 373,607,621.90 is: 515,523,055.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,137,334.15 : 848,798,203.15 = 373,607,621.90 : x
  2. Step 2: Convert to fraction form
    615,137,334.15/848,798,203.15 = 373,607,621.90/x
  3. Step 3: Cross multiply
    615,137,334.15x = 848,798,203.15 × 373,607,621.90
  4. Step 4: Simplify right side
    615,137,334.15x = 317,117,478,151,864,576
  5. Step 5: Solve for x
    x = 317,117,478,151,864,576/615,137,334.15
  6. Step 6: Final answer
    x = 515,523,055.66

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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.