Home / 876,578,558.35-1,209,679,576.82-474,692,999.85

Finding the Fourth Proportional to 876,578,558.35, 1,209,679,576.82 and 474,692,999.85

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Solution

The fourth proportional to 876,578,558.35, 1,209,679,576.82 and 474,692,999.85 is: 655,076,971.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,578,558.35 : 1,209,679,576.82 = 474,692,999.85 : x
  2. Step 2: Convert to fraction form
    876,578,558.35/1,209,679,576.82 = 474,692,999.85/x
  3. Step 3: Cross multiply
    876,578,558.35x = 1,209,679,576.82 × 474,692,999.85
  4. Step 4: Simplify right side
    876,578,558.35x = 574,226,427,177,964,352
  5. Step 5: Solve for x
    x = 574,226,427,177,964,352/876,578,558.35
  6. Step 6: Final answer
    x = 655,076,971.38

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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.