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Finding the Fourth Proportional to 571,210.61, 788,265.74 and 313,101.89

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Solution

The fourth proportional to 571,210.61, 788,265.74 and 313,101.89 is: 432,077.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,210.61 : 788,265.74 = 313,101.89 : x
  2. Step 2: Convert to fraction form
    571,210.61/788,265.74 = 313,101.89/x
  3. Step 3: Cross multiply
    571,210.61x = 788,265.74 × 313,101.89
  4. Step 4: Simplify right side
    571,210.61x = 246,807,487,509.41
  5. Step 5: Solve for x
    x = 246,807,487,509.41/571,210.61
  6. Step 6: Final answer
    x = 432,077.92

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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.