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Finding the Fourth Proportional to 418,495.01, 577,501.04 and 227,507.54

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Solution

The fourth proportional to 418,495.01, 577,501.04 and 227,507.54 is: 313,948.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,495.01 : 577,501.04 = 227,507.54 : x
  2. Step 2: Convert to fraction form
    418,495.01/577,501.04 = 227,507.54/x
  3. Step 3: Cross multiply
    418,495.01x = 577,501.04 × 227,507.54
  4. Step 4: Simplify right side
    418,495.01x = 131,385,838,639.11
  5. Step 5: Solve for x
    x = 131,385,838,639.11/418,495.01
  6. Step 6: Final answer
    x = 313,948.40

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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.