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Finding the Fourth Proportional to 566,563.75, 781,914.45 and 423,074.68

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Solution

The fourth proportional to 566,563.75, 781,914.45 and 423,074.68 is: 583,885.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    566,563.75 : 781,914.45 = 423,074.68 : x
  2. Step 2: Convert to fraction form
    566,563.75/781,914.45 = 423,074.68/x
  3. Step 3: Cross multiply
    566,563.75x = 781,914.45 × 423,074.68
  4. Step 4: Simplify right side
    566,563.75x = 330,808,205,721.13
  5. Step 5: Solve for x
    x = 330,808,205,721.13/566,563.75
  6. Step 6: Final answer
    x = 583,885.23

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Double scale
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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.