Home / 743,280.10-1,114,920.15-619,277.20

Finding the Fourth Proportional to 743,280.10, 1,114,920.15 and 619,277.20

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Solution

The fourth proportional to 743,280.10, 1,114,920.15 and 619,277.20 is: 928,915.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,280.10 : 1,114,920.15 = 619,277.20 : x
  2. Step 2: Convert to fraction form
    743,280.10/1,114,920.15 = 619,277.20/x
  3. Step 3: Cross multiply
    743,280.10x = 1,114,920.15 × 619,277.20
  4. Step 4: Simplify right side
    743,280.10x = 690,444,628,715.58
  5. Step 5: Solve for x
    x = 690,444,628,715.58/743,280.10
  6. Step 6: Final answer
    x = 928,915.80

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Similar ratio
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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.