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Finding the Fourth Proportional to 454,065.80, 626,486.11 and 316,090.10

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Solution

The fourth proportional to 454,065.80, 626,486.11 and 316,090.10 is: 436,117.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,065.80 : 626,486.11 = 316,090.10 : x
  2. Step 2: Convert to fraction form
    454,065.80/626,486.11 = 316,090.10/x
  3. Step 3: Cross multiply
    454,065.80x = 626,486.11 × 316,090.10
  4. Step 4: Simplify right side
    454,065.80x = 198,026,057,934.50
  5. Step 5: Solve for x
    x = 198,026,057,934.50/454,065.80
  6. Step 6: Final answer
    x = 436,117.53

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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.