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Finding the Fourth Proportional to 519,501.16, 716,904.77 and 290,062.34

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Solution

The fourth proportional to 519,501.16, 716,904.77 and 290,062.34 is: 400,282.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,501.16 : 716,904.77 = 290,062.34 : x
  2. Step 2: Convert to fraction form
    519,501.16/716,904.77 = 290,062.34/x
  3. Step 3: Cross multiply
    519,501.16x = 716,904.77 × 290,062.34
  4. Step 4: Simplify right side
    519,501.16x = 207,947,071,558.84
  5. Step 5: Solve for x
    x = 207,947,071,558.84/519,501.16
  6. Step 6: Final answer
    x = 400,282.21

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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.