Home / 656,880.41-906,521.90-415,074.75

Finding the Fourth Proportional to 656,880.41, 906,521.90 and 415,074.75

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Solution

The fourth proportional to 656,880.41, 906,521.90 and 415,074.75 is: 572,820.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,880.41 : 906,521.90 = 415,074.75 : x
  2. Step 2: Convert to fraction form
    656,880.41/906,521.90 = 415,074.75/x
  3. Step 3: Cross multiply
    656,880.41x = 906,521.90 × 415,074.75
  4. Step 4: Simplify right side
    656,880.41x = 376,274,356,688.17
  5. Step 5: Solve for x
    x = 376,274,356,688.17/656,880.41
  6. Step 6: Final answer
    x = 572,820.18

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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.