Home / 554,021.80-831,032.70-459,543.40

Finding the Fourth Proportional to 554,021.80, 831,032.70 and 459,543.40

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Solution

The fourth proportional to 554,021.80, 831,032.70 and 459,543.40 is: 689,315.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,021.80 : 831,032.70 = 459,543.40 : x
  2. Step 2: Convert to fraction form
    554,021.80/831,032.70 = 459,543.40/x
  3. Step 3: Cross multiply
    554,021.80x = 831,032.70 × 459,543.40
  4. Step 4: Simplify right side
    554,021.80x = 381,895,592,469.18
  5. Step 5: Solve for x
    x = 381,895,592,469.18/554,021.80
  6. Step 6: Final answer
    x = 689,315.10

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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.