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Finding the Fourth Proportional to 620,871.03, 856,805.45 and 362,763.14

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Solution

The fourth proportional to 620,871.03, 856,805.45 and 362,763.14 is: 500,615.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,871.03 : 856,805.45 = 362,763.14 : x
  2. Step 2: Convert to fraction form
    620,871.03/856,805.45 = 362,763.14/x
  3. Step 3: Cross multiply
    620,871.03x = 856,805.45 × 362,763.14
  4. Step 4: Simplify right side
    620,871.03x = 310,817,429,313.27
  5. Step 5: Solve for x
    x = 310,817,429,313.27/620,871.03
  6. Step 6: Final answer
    x = 500,615.13

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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.