Home / 628,934.20-941,327.70-487,929.40

Finding the Fourth Proportional to 628,934.20, 941,327.70 and 487,929.40

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Solution

The fourth proportional to 628,934.20, 941,327.70 and 487,929.40 is: 730,285.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,934.20 : 941,327.70 = 487,929.40 : x
  2. Step 2: Convert to fraction form
    628,934.20/941,327.70 = 487,929.40/x
  3. Step 3: Cross multiply
    628,934.20x = 941,327.70 × 487,929.40
  4. Step 4: Simplify right side
    628,934.20x = 459,301,459,864.38
  5. Step 5: Solve for x
    x = 459,301,459,864.38/628,934.20
  6. Step 6: Final answer
    x = 730,285.39

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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.