Home / 683,543.40-1,025,315.10-403,607.40

Finding the Fourth Proportional to 683,543.40, 1,025,315.10 and 403,607.40

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Solution

The fourth proportional to 683,543.40, 1,025,315.10 and 403,607.40 is: 605,411.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    683,543.40 : 1,025,315.10 = 403,607.40 : x
  2. Step 2: Convert to fraction form
    683,543.40/1,025,315.10 = 403,607.40/x
  3. Step 3: Cross multiply
    683,543.40x = 1,025,315.10 × 403,607.40
  4. Step 4: Simplify right side
    683,543.40x = 413,824,761,691.74
  5. Step 5: Solve for x
    x = 413,824,761,691.74/683,543.40
  6. Step 6: Final answer
    x = 605,411.10

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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.