Home / 931,517.60-1,397,276.40-459,125.60

Finding the Fourth Proportional to 931,517.60, 1,397,276.40 and 459,125.60

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Solution

The fourth proportional to 931,517.60, 1,397,276.40 and 459,125.60 is: 688,688.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    931,517.60 : 1,397,276.40 = 459,125.60 : x
  2. Step 2: Convert to fraction form
    931,517.60/1,397,276.40 = 459,125.60/x
  3. Step 3: Cross multiply
    931,517.60x = 1,397,276.40 × 459,125.60
  4. Step 4: Simplify right side
    931,517.60x = 641,525,365,515.84
  5. Step 5: Solve for x
    x = 641,525,365,515.84/931,517.60
  6. Step 6: Final answer
    x = 688,688.40

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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.