Home / 930,015.40-1,391,523.90-615,087.40

Finding the Fourth Proportional to 930,015.40, 1,391,523.90 and 615,087.40

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Solution

The fourth proportional to 930,015.40, 1,391,523.90 and 615,087.40 is: 920,316.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    930,015.40 : 1,391,523.90 = 615,087.40 : x
  2. Step 2: Convert to fraction form
    930,015.40/1,391,523.90 = 615,087.40/x
  3. Step 3: Cross multiply
    930,015.40x = 1,391,523.90 × 615,087.40
  4. Step 4: Simplify right side
    930,015.40x = 855,908,817,688.86
  5. Step 5: Solve for x
    x = 855,908,817,688.86/930,015.40
  6. Step 6: Final answer
    x = 920,316.82

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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.