Home / 813,495.66-1,123,071.08-555,760.14

Finding the Fourth Proportional to 813,495.66, 1,123,071.08 and 555,760.14

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Solution

The fourth proportional to 813,495.66, 1,123,071.08 and 555,760.14 is: 767,254.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,495.66 : 1,123,071.08 = 555,760.14 : x
  2. Step 2: Convert to fraction form
    813,495.66/1,123,071.08 = 555,760.14/x
  3. Step 3: Cross multiply
    813,495.66x = 1,123,071.08 × 555,760.14
  4. Step 4: Simplify right side
    813,495.66x = 624,158,137,871.95
  5. Step 5: Solve for x
    x = 624,158,137,871.95/813,495.66
  6. Step 6: Final answer
    x = 767,254.42

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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.