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Finding the Fourth Proportional to 561,569.10, 842,353.65 and 555,664.20

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Solution

The fourth proportional to 561,569.10, 842,353.65 and 555,664.20 is: 833,496.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,569.10 : 842,353.65 = 555,664.20 : x
  2. Step 2: Convert to fraction form
    561,569.10/842,353.65 = 555,664.20/x
  3. Step 3: Cross multiply
    561,569.10x = 842,353.65 × 555,664.20
  4. Step 4: Simplify right side
    561,569.10x = 468,065,767,044.33
  5. Step 5: Solve for x
    x = 468,065,767,044.33/561,569.10
  6. Step 6: Final answer
    x = 833,496.30

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.