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Finding the Fourth Proportional to 533,638.76, 736,435.26 and 291,931.52

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Solution

The fourth proportional to 533,638.76, 736,435.26 and 291,931.52 is: 402,873.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    533,638.76 : 736,435.26 = 291,931.52 : x
  2. Step 2: Convert to fraction form
    533,638.76/736,435.26 = 291,931.52/x
  3. Step 3: Cross multiply
    533,638.76x = 736,435.26 × 291,931.52
  4. Step 4: Simplify right side
    533,638.76x = 214,988,661,151.22
  5. Step 5: Solve for x
    x = 214,988,661,151.22/533,638.76
  6. Step 6: Final answer
    x = 402,873.03

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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.