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Finding the Fourth Proportional to 624,058.12, 861,312.18 and 352,209.16

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Solution

The fourth proportional to 624,058.12, 861,312.18 and 352,209.16 is: 486,111.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,058.12 : 861,312.18 = 352,209.16 : x
  2. Step 2: Convert to fraction form
    624,058.12/861,312.18 = 352,209.16/x
  3. Step 3: Cross multiply
    624,058.12x = 861,312.18 × 352,209.16
  4. Step 4: Simplify right side
    624,058.12x = 303,362,039,415.57
  5. Step 5: Solve for x
    x = 303,362,039,415.57/624,058.12
  6. Step 6: Final answer
    x = 486,111.84

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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.