Home / 931,435.60-1,397,153.40-257,515.60

Finding the Fourth Proportional to 931,435.60, 1,397,153.40 and 257,515.60

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Solution

The fourth proportional to 931,435.60, 1,397,153.40 and 257,515.60 is: 386,273.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    931,435.60 : 1,397,153.40 = 257,515.60 : x
  2. Step 2: Convert to fraction form
    931,435.60/1,397,153.40 = 257,515.60/x
  3. Step 3: Cross multiply
    931,435.60x = 1,397,153.40 × 257,515.60
  4. Step 4: Simplify right side
    931,435.60x = 359,788,796,093.04
  5. Step 5: Solve for x
    x = 359,788,796,093.04/931,435.60
  6. Step 6: Final answer
    x = 386,273.40

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Half scale
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Double scale
Find fourth proportional to 931,436.60, 1,397,154.90 and 257,516.60
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.