Home / 621,973.27-858,587.95-418,142.41

Finding the Fourth Proportional to 621,973.27, 858,587.95 and 418,142.41

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Solution

The fourth proportional to 621,973.27, 858,587.95 and 418,142.41 is: 577,214.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,973.27 : 858,587.95 = 418,142.41 : x
  2. Step 2: Convert to fraction form
    621,973.27/858,587.95 = 418,142.41/x
  3. Step 3: Cross multiply
    621,973.27x = 858,587.95 × 418,142.41
  4. Step 4: Simplify right side
    621,973.27x = 359,012,035,463.67
  5. Step 5: Solve for x
    x = 359,012,035,463.67/621,973.27
  6. Step 6: Final answer
    x = 577,214.57

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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.