Home / 813,754.19-1,123,271.40-555,446.25

Finding the Fourth Proportional to 813,754.19, 1,123,271.40 and 555,446.25

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Solution

The fourth proportional to 813,754.19, 1,123,271.40 and 555,446.25 is: 766,714.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,754.19 : 1,123,271.40 = 555,446.25 : x
  2. Step 2: Convert to fraction form
    813,754.19/1,123,271.40 = 555,446.25/x
  3. Step 3: Cross multiply
    813,754.19x = 1,123,271.40 × 555,446.25
  4. Step 4: Simplify right side
    813,754.19x = 623,916,886,862.25
  5. Step 5: Solve for x
    x = 623,916,886,862.25/813,754.19
  6. Step 6: Final answer
    x = 766,714.19

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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.