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Finding the Fourth Proportional to 624,210.72, 861,165.70 and 362,521.48

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Solution

The fourth proportional to 624,210.72, 861,165.70 and 362,521.48 is: 500,137.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,210.72 : 861,165.70 = 362,521.48 : x
  2. Step 2: Convert to fraction form
    624,210.72/861,165.70 = 362,521.48/x
  3. Step 3: Cross multiply
    624,210.72x = 861,165.70 × 362,521.48
  4. Step 4: Simplify right side
    624,210.72x = 312,191,066,298.57
  5. Step 5: Solve for x
    x = 312,191,066,298.57/624,210.72
  6. Step 6: Final answer
    x = 500,137.30

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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.