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Finding the Fourth Proportional to 283,552.60, 425,328.90 and 266,931.40

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Solution

The fourth proportional to 283,552.60, 425,328.90 and 266,931.40 is: 400,397.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,552.60 : 425,328.90 = 266,931.40 : x
  2. Step 2: Convert to fraction form
    283,552.60/425,328.90 = 266,931.40/x
  3. Step 3: Cross multiply
    283,552.60x = 425,328.90 × 266,931.40
  4. Step 4: Simplify right side
    283,552.60x = 113,533,638,737.46
  5. Step 5: Solve for x
    x = 113,533,638,737.46/283,552.60
  6. Step 6: Final answer
    x = 400,397.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.