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Finding the Fourth Proportional to 644,970.06, 890,457.03 and 415,608.30

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Solution

The fourth proportional to 644,970.06, 890,457.03 and 415,608.30 is: 573,796.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,970.06 : 890,457.03 = 415,608.30 : x
  2. Step 2: Convert to fraction form
    644,970.06/890,457.03 = 415,608.30/x
  3. Step 3: Cross multiply
    644,970.06x = 890,457.03 × 415,608.30
  4. Step 4: Simplify right side
    644,970.06x = 370,081,332,461.35
  5. Step 5: Solve for x
    x = 370,081,332,461.35/644,970.06
  6. Step 6: Final answer
    x = 573,796.14

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1.5x scale

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.