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Finding the Fourth Proportional to 503,944.02, 695,430.71 and 289,070.36

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Solution

The fourth proportional to 503,944.02, 695,430.71 and 289,070.36 is: 398,910.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,944.02 : 695,430.71 = 289,070.36 : x
  2. Step 2: Convert to fraction form
    503,944.02/695,430.71 = 289,070.36/x
  3. Step 3: Cross multiply
    503,944.02x = 695,430.71 × 289,070.36
  4. Step 4: Simplify right side
    503,944.02x = 201,028,400,772.25
  5. Step 5: Solve for x
    x = 201,028,400,772.25/503,944.02
  6. Step 6: Final answer
    x = 398,910.18

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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.