Home / 805,763.40-1,208,645.10-604,996.80

Finding the Fourth Proportional to 805,763.40, 1,208,645.10 and 604,996.80

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Solution

The fourth proportional to 805,763.40, 1,208,645.10 and 604,996.80 is: 907,495.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,763.40 : 1,208,645.10 = 604,996.80 : x
  2. Step 2: Convert to fraction form
    805,763.40/1,208,645.10 = 604,996.80/x
  3. Step 3: Cross multiply
    805,763.40x = 1,208,645.10 × 604,996.80
  4. Step 4: Simplify right side
    805,763.40x = 731,226,417,835.68
  5. Step 5: Solve for x
    x = 731,226,417,835.68/805,763.40
  6. Step 6: Final answer
    x = 907,495.20

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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.