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Finding the Fourth Proportional to 525,457.17, 785,306.64 and 383,601.17

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Solution

The fourth proportional to 525,457.17, 785,306.64 and 383,601.17 is: 573,299.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,457.17 : 785,306.64 = 383,601.17 : x
  2. Step 2: Convert to fraction form
    525,457.17/785,306.64 = 383,601.17/x
  3. Step 3: Cross multiply
    525,457.17x = 785,306.64 × 383,601.17
  4. Step 4: Simplify right side
    525,457.17x = 301,244,545,912.77
  5. Step 5: Solve for x
    x = 301,244,545,912.77/525,457.17
  6. Step 6: Final answer
    x = 573,299.91

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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.