Home / 657,559.23-908,058.45-621,735.63

Finding the Fourth Proportional to 657,559.23, 908,058.45 and 621,735.63

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Solution

The fourth proportional to 657,559.23, 908,058.45 and 621,735.63 is: 858,587.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,559.23 : 908,058.45 = 621,735.63 : x
  2. Step 2: Convert to fraction form
    657,559.23/908,058.45 = 621,735.63/x
  3. Step 3: Cross multiply
    657,559.23x = 908,058.45 × 621,735.63
  4. Step 4: Simplify right side
    657,559.23x = 564,572,291,851.04
  5. Step 5: Solve for x
    x = 564,572,291,851.04/657,559.23
  6. Step 6: Final answer
    x = 858,587.73

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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.