Home / 526,075,521.72-725,985,632.16-291,142,383

Finding the Fourth Proportional to 526,075,521.72, 725,985,632.16 and 291,142,383

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Solution

The fourth proportional to 526,075,521.72, 725,985,632.16 and 291,142,383 is: 401,777,270.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,075,521.72 : 725,985,632.16 = 291,142,383 : x
  2. Step 2: Convert to fraction form
    526,075,521.72/725,985,632.16 = 291,142,383/x
  3. Step 3: Cross multiply
    526,075,521.72x = 725,985,632.16 × 291,142,383
  4. Step 4: Simplify right side
    526,075,521.72x = 211,365,186,970,823,840
  5. Step 5: Solve for x
    x = 211,365,186,970,823,840/526,075,521.72
  6. Step 6: Final answer
    x = 401,777,270.08

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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.