Home / 1,038,516.40-1,557,774.60-407,450.80

Finding the Fourth Proportional to 1,038,516.40, 1,557,774.60 and 407,450.80

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Solution

The fourth proportional to 1,038,516.40, 1,557,774.60 and 407,450.80 is: 611,176.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,038,516.40 : 1,557,774.60 = 407,450.80 : x
  2. Step 2: Convert to fraction form
    1,038,516.40/1,557,774.60 = 407,450.80/x
  3. Step 3: Cross multiply
    1,038,516.40x = 1,557,774.60 × 407,450.80
  4. Step 4: Simplify right side
    1,038,516.40x = 634,716,506,989.68
  5. Step 5: Solve for x
    x = 634,716,506,989.68/1,038,516.40
  6. Step 6: Final answer
    x = 611,176.20

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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.