Home / 920,666.34-1,380,058.38-621,177.30

Finding the Fourth Proportional to 920,666.34, 1,380,058.38 and 621,177.30

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Solution

The fourth proportional to 920,666.34, 1,380,058.38 and 621,177.30 is: 931,130.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,666.34 : 1,380,058.38 = 621,177.30 : x
  2. Step 2: Convert to fraction form
    920,666.34/1,380,058.38 = 621,177.30/x
  3. Step 3: Cross multiply
    920,666.34x = 1,380,058.38 × 621,177.30
  4. Step 4: Simplify right side
    920,666.34x = 857,260,938,330.77
  5. Step 5: Solve for x
    x = 857,260,938,330.77/920,666.34
  6. Step 6: Final answer
    x = 931,130.97

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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.