Home / 879,531.07-1,213,755.23-477,123.07

Finding the Fourth Proportional to 879,531.07, 1,213,755.23 and 477,123.07

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Solution

The fourth proportional to 879,531.07, 1,213,755.23 and 477,123.07 is: 658,431.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,531.07 : 1,213,755.23 = 477,123.07 : x
  2. Step 2: Convert to fraction form
    879,531.07/1,213,755.23 = 477,123.07/x
  3. Step 3: Cross multiply
    879,531.07x = 1,213,755.23 × 477,123.07
  4. Step 4: Simplify right side
    879,531.07x = 579,110,621,566.16
  5. Step 5: Solve for x
    x = 579,110,621,566.16/879,531.07
  6. Step 6: Final answer
    x = 658,431.11

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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.