Home / 838,667.36-1,157,330.40-456,685.76

Finding the Fourth Proportional to 838,667.36, 1,157,330.40 and 456,685.76

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Solution

The fourth proportional to 838,667.36, 1,157,330.40 and 456,685.76 is: 630,209.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    838,667.36 : 1,157,330.40 = 456,685.76 : x
  2. Step 2: Convert to fraction form
    838,667.36/1,157,330.40 = 456,685.76/x
  3. Step 3: Cross multiply
    838,667.36x = 1,157,330.40 × 456,685.76
  4. Step 4: Simplify right side
    838,667.36x = 528,536,313,295.10
  5. Step 5: Solve for x
    x = 528,536,313,295.10/838,667.36
  6. Step 6: Final answer
    x = 630,209.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.