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Finding the Fourth Proportional to 671,803,477.13, 924,978,974.94 and 571,133,825.93

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Solution

The fourth proportional to 671,803,477.13, 924,978,974.94 and 571,133,825.93 is: 786,371,013.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,803,477.13 : 924,978,974.94 = 571,133,825.93 : x
  2. Step 2: Convert to fraction form
    671,803,477.13/924,978,974.94 = 571,133,825.93/x
  3. Step 3: Cross multiply
    671,803,477.13x = 924,978,974.94 × 571,133,825.93
  4. Step 4: Simplify right side
    671,803,477.13x = 528,286,780,862,291,776
  5. Step 5: Solve for x
    x = 528,286,780,862,291,776/671,803,477.13
  6. Step 6: Final answer
    x = 786,371,013.02

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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.