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Finding the Fourth Proportional to 613,157.32, 846,139.80 and 341,220.88

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Solution

The fourth proportional to 613,157.32, 846,139.80 and 341,220.88 is: 470,875.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,157.32 : 846,139.80 = 341,220.88 : x
  2. Step 2: Convert to fraction form
    613,157.32/846,139.80 = 341,220.88/x
  3. Step 3: Cross multiply
    613,157.32x = 846,139.80 × 341,220.88
  4. Step 4: Simplify right side
    613,157.32x = 288,720,567,159.02
  5. Step 5: Solve for x
    x = 288,720,567,159.02/613,157.32
  6. Step 6: Final answer
    x = 470,875.19

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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.