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Finding the Fourth Proportional to 527,798.11, 728,439.21 and 334,223.49

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Solution

The fourth proportional to 527,798.11, 728,439.21 and 334,223.49 is: 461,277.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,798.11 : 728,439.21 = 334,223.49 : x
  2. Step 2: Convert to fraction form
    527,798.11/728,439.21 = 334,223.49/x
  3. Step 3: Cross multiply
    527,798.11x = 728,439.21 × 334,223.49
  4. Step 4: Simplify right side
    527,798.11x = 243,461,495,019.04
  5. Step 5: Solve for x
    x = 243,461,495,019.04/527,798.11
  6. Step 6: Final answer
    x = 461,277.69

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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.