Home / 876,578,556.86-1,209,679,574.76-474,692,998.35

Finding the Fourth Proportional to 876,578,556.86, 1,209,679,574.76 and 474,692,998.35

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Solution

The fourth proportional to 876,578,556.86, 1,209,679,574.76 and 474,692,998.35 is: 655,076,969.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,578,556.86 : 1,209,679,574.76 = 474,692,998.35 : x
  2. Step 2: Convert to fraction form
    876,578,556.86/1,209,679,574.76 = 474,692,998.35/x
  3. Step 3: Cross multiply
    876,578,556.86x = 1,209,679,574.76 × 474,692,998.35
  4. Step 4: Simplify right side
    876,578,556.86x = 574,226,424,383,203,968
  5. Step 5: Solve for x
    x = 574,226,424,383,203,968/876,578,556.86
  6. Step 6: Final answer
    x = 655,076,969.31

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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.