Home / 876,611,262.95-1,209,724,195.08-474,728,131.34

Finding the Fourth Proportional to 876,611,262.95, 1,209,724,195.08 and 474,728,131.34

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Solution

The fourth proportional to 876,611,262.95, 1,209,724,195.08 and 474,728,131.34 is: 655,125,174.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,611,262.95 : 1,209,724,195.08 = 474,728,131.34 : x
  2. Step 2: Convert to fraction form
    876,611,262.95/1,209,724,195.08 = 474,728,131.34/x
  3. Step 3: Cross multiply
    876,611,262.95x = 1,209,724,195.08 × 474,728,131.34
  4. Step 4: Simplify right side
    876,611,262.95x = 574,290,106,561,065,344
  5. Step 5: Solve for x
    x = 574,290,106,561,065,344/876,611,262.95
  6. Step 6: Final answer
    x = 655,125,174.45

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Double scale
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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.