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Finding the Fourth Proportional to 520,461.14, 718,203.02 and 291,037.32

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Solution

The fourth proportional to 520,461.14, 718,203.02 and 291,037.32 is: 401,612.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,461.14 : 718,203.02 = 291,037.32 : x
  2. Step 2: Convert to fraction form
    520,461.14/718,203.02 = 291,037.32/x
  3. Step 3: Cross multiply
    520,461.14x = 718,203.02 × 291,037.32
  4. Step 4: Simplify right side
    520,461.14x = 209,023,880,701.52
  5. Step 5: Solve for x
    x = 209,023,880,701.52/520,461.14
  6. Step 6: Final answer
    x = 401,612.85

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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.