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Finding the Fourth Proportional to 561,946.90, 842,920.35 and 552,615.70

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Solution

The fourth proportional to 561,946.90, 842,920.35 and 552,615.70 is: 828,923.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,946.90 : 842,920.35 = 552,615.70 : x
  2. Step 2: Convert to fraction form
    561,946.90/842,920.35 = 552,615.70/x
  3. Step 3: Cross multiply
    561,946.90x = 842,920.35 × 552,615.70
  4. Step 4: Simplify right side
    561,946.90x = 465,811,019,259.50
  5. Step 5: Solve for x
    x = 465,811,019,259.50/561,946.90
  6. Step 6: Final answer
    x = 828,923.55

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Double scale
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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.