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Finding the Fourth Proportional to 533,737.32, 736,484.75 and 318,831.76

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Solution

The fourth proportional to 533,737.32, 736,484.75 and 318,831.76 is: 439,944.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    533,737.32 : 736,484.75 = 318,831.76 : x
  2. Step 2: Convert to fraction form
    533,737.32/736,484.75 = 318,831.76/x
  3. Step 3: Cross multiply
    533,737.32x = 736,484.75 × 318,831.76
  4. Step 4: Simplify right side
    533,737.32x = 234,814,731,371.16
  5. Step 5: Solve for x
    x = 234,814,731,371.16/533,737.32
  6. Step 6: Final answer
    x = 439,944.38

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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.