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Finding the Fourth Proportional to 651,388.28, 898,952.72 and 365,000.64

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Solution

The fourth proportional to 651,388.28, 898,952.72 and 365,000.64 is: 503,721.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,388.28 : 898,952.72 = 365,000.64 : x
  2. Step 2: Convert to fraction form
    651,388.28/898,952.72 = 365,000.64/x
  3. Step 3: Cross multiply
    651,388.28x = 898,952.72 × 365,000.64
  4. Step 4: Simplify right side
    651,388.28x = 328,118,318,129.74
  5. Step 5: Solve for x
    x = 328,118,318,129.74/651,388.28
  6. Step 6: Final answer
    x = 503,721.56

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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.