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Finding the Fourth Proportional to 453,415.84, 625,717.36 and 283,746.40

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Solution

The fourth proportional to 453,415.84, 625,717.36 and 283,746.40 is: 391,572.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,415.84 : 625,717.36 = 283,746.40 : x
  2. Step 2: Convert to fraction form
    453,415.84/625,717.36 = 283,746.40/x
  3. Step 3: Cross multiply
    453,415.84x = 625,717.36 × 283,746.40
  4. Step 4: Simplify right side
    453,415.84x = 177,545,048,317.50
  5. Step 5: Solve for x
    x = 177,545,048,317.50/453,415.84
  6. Step 6: Final answer
    x = 391,572.22

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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.