Home / 698,457.60-1,047,686.40-199,821.60

Finding the Fourth Proportional to 698,457.60, 1,047,686.40 and 199,821.60

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Solution

The fourth proportional to 698,457.60, 1,047,686.40 and 199,821.60 is: 299,732.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    698,457.60 : 1,047,686.40 = 199,821.60 : x
  2. Step 2: Convert to fraction form
    698,457.60/1,047,686.40 = 199,821.60/x
  3. Step 3: Cross multiply
    698,457.60x = 1,047,686.40 × 199,821.60
  4. Step 4: Simplify right side
    698,457.60x = 209,350,372,746.24
  5. Step 5: Solve for x
    x = 209,350,372,746.24/698,457.60
  6. Step 6: Final answer
    x = 299,732.40

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Double scale
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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.