Home / 690,966.16-953,610.50-385,070.47

Finding the Fourth Proportional to 690,966.16, 953,610.50 and 385,070.47

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Solution

The fourth proportional to 690,966.16, 953,610.50 and 385,070.47 is: 531,440.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,966.16 : 953,610.50 = 385,070.47 : x
  2. Step 2: Convert to fraction form
    690,966.16/953,610.50 = 385,070.47/x
  3. Step 3: Cross multiply
    690,966.16x = 953,610.50 × 385,070.47
  4. Step 4: Simplify right side
    690,966.16x = 367,207,243,431.94
  5. Step 5: Solve for x
    x = 367,207,243,431.94/690,966.16
  6. Step 6: Final answer
    x = 531,440.27

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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.