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Finding the Fourth Proportional to 533,570.81, 736,117.20 and 329,265.72

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Solution

The fourth proportional to 533,570.81, 736,117.20 and 329,265.72 is: 454,256.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    533,570.81 : 736,117.20 = 329,265.72 : x
  2. Step 2: Convert to fraction form
    533,570.81/736,117.20 = 329,265.72/x
  3. Step 3: Cross multiply
    533,570.81x = 736,117.20 × 329,265.72
  4. Step 4: Simplify right side
    533,570.81x = 242,378,159,862.38
  5. Step 5: Solve for x
    x = 242,378,159,862.38/533,570.81
  6. Step 6: Final answer
    x = 454,256.79

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Double scale
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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.