Home / 698,685.62-1,047,280.86-361,386.63

Finding the Fourth Proportional to 698,685.62, 1,047,280.86 and 361,386.63

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Solution

The fourth proportional to 698,685.62, 1,047,280.86 and 361,386.63 is: 541,693.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    698,685.62 : 1,047,280.86 = 361,386.63 : x
  2. Step 2: Convert to fraction form
    698,685.62/1,047,280.86 = 361,386.63/x
  3. Step 3: Cross multiply
    698,685.62x = 1,047,280.86 × 361,386.63
  4. Step 4: Simplify right side
    698,685.62x = 378,473,300,658.90
  5. Step 5: Solve for x
    x = 378,473,300,658.90/698,685.62
  6. Step 6: Final answer
    x = 541,693.28

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Double scale
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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.