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Finding the Fourth Proportional to 546,642.74, 820,275.51 and 436,534.58

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Solution

The fourth proportional to 546,642.74, 820,275.51 and 436,534.58 is: 655,050.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    546,642.74 : 820,275.51 = 436,534.58 : x
  2. Step 2: Convert to fraction form
    546,642.74/820,275.51 = 436,534.58/x
  3. Step 3: Cross multiply
    546,642.74x = 820,275.51 × 436,534.58
  4. Step 4: Simplify right side
    546,642.74x = 358,078,625,242.14
  5. Step 5: Solve for x
    x = 358,078,625,242.14/546,642.74
  6. Step 6: Final answer
    x = 655,050.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.