Home / 805,848.60-1,208,772.90-553,906.20

Finding the Fourth Proportional to 805,848.60, 1,208,772.90 and 553,906.20

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Solution

The fourth proportional to 805,848.60, 1,208,772.90 and 553,906.20 is: 830,859.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,848.60 : 1,208,772.90 = 553,906.20 : x
  2. Step 2: Convert to fraction form
    805,848.60/1,208,772.90 = 553,906.20/x
  3. Step 3: Cross multiply
    805,848.60x = 1,208,772.90 × 553,906.20
  4. Step 4: Simplify right side
    805,848.60x = 669,546,803,701.98
  5. Step 5: Solve for x
    x = 669,546,803,701.98/805,848.60
  6. Step 6: Final answer
    x = 830,859.30

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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.