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Finding the Fourth Proportional to 525,456.17, 785,305.15 and 383,600.17

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Solution

The fourth proportional to 525,456.17, 785,305.15 and 383,600.17 is: 573,298.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,456.17 : 785,305.15 = 383,600.17 : x
  2. Step 2: Convert to fraction form
    525,456.17/785,305.15 = 383,600.17/x
  3. Step 3: Cross multiply
    525,456.17x = 785,305.15 × 383,600.17
  4. Step 4: Simplify right side
    525,456.17x = 301,243,189,041.88
  5. Step 5: Solve for x
    x = 301,243,189,041.88/525,456.17
  6. Step 6: Final answer
    x = 573,298.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.