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Finding the Fourth Proportional to 352,602,482.80, 528,903,724.20 and 255,856,601.20

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Solution

The fourth proportional to 352,602,482.80, 528,903,724.20 and 255,856,601.20 is: 383,784,901.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,602,482.80 : 528,903,724.20 = 255,856,601.20 : x
  2. Step 2: Convert to fraction form
    352,602,482.80/528,903,724.20 = 255,856,601.20/x
  3. Step 3: Cross multiply
    352,602,482.80x = 528,903,724.20 × 255,856,601.20
  4. Step 4: Simplify right side
    352,602,482.80x = 135,323,509,235,834,176
  5. Step 5: Solve for x
    x = 135,323,509,235,834,176/352,602,482.80
  6. Step 6: Final answer
    x = 383,784,901.80

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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.