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Finding the Fourth Proportional to 533,781.51, 736,545.81 and 318,875.94

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Solution

The fourth proportional to 533,781.51, 736,545.81 and 318,875.94 is: 440,005.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    533,781.51 : 736,545.81 = 318,875.94 : x
  2. Step 2: Convert to fraction form
    533,781.51/736,545.81 = 318,875.94/x
  3. Step 3: Cross multiply
    533,781.51x = 736,545.81 × 318,875.94
  4. Step 4: Simplify right side
    533,781.51x = 234,866,737,516.81
  5. Step 5: Solve for x
    x = 234,866,737,516.81/533,781.51
  6. Step 6: Final answer
    x = 440,005.38

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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.