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Finding the Fourth Proportional to 487,671.40, 730,923.90 and 250,892.20

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Solution

The fourth proportional to 487,671.40, 730,923.90 and 250,892.20 is: 376,038.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,671.40 : 730,923.90 = 250,892.20 : x
  2. Step 2: Convert to fraction form
    487,671.40/730,923.90 = 250,892.20/x
  3. Step 3: Cross multiply
    487,671.40x = 730,923.90 × 250,892.20
  4. Step 4: Simplify right side
    487,671.40x = 183,383,105,303.58
  5. Step 5: Solve for x
    x = 183,383,105,303.58/487,671.40
  6. Step 6: Final answer
    x = 376,038.26

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1.5x scale

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.