Home / 388,923.40-583,385.10-93,435.40

Finding the Fourth Proportional to 388,923.40, 583,385.10 and 93,435.40

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Solution

The fourth proportional to 388,923.40, 583,385.10 and 93,435.40 is: 140,153.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,923.40 : 583,385.10 = 93,435.40 : x
  2. Step 2: Convert to fraction form
    388,923.40/583,385.10 = 93,435.40/x
  3. Step 3: Cross multiply
    388,923.40x = 583,385.10 × 93,435.40
  4. Step 4: Simplify right side
    388,923.40x = 54,508,820,172.54
  5. Step 5: Solve for x
    x = 54,508,820,172.54/388,923.40
  6. Step 6: Final answer
    x = 140,153.10

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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.