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Finding the Fourth Proportional to 571,157.76, 788,177.88 and 316,532.64

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Solution

The fourth proportional to 571,157.76, 788,177.88 and 316,532.64 is: 436,804.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,157.76 : 788,177.88 = 316,532.64 : x
  2. Step 2: Convert to fraction form
    571,157.76/788,177.88 = 316,532.64/x
  3. Step 3: Cross multiply
    571,157.76x = 788,177.88 × 316,532.64
  4. Step 4: Simplify right side
    571,157.76x = 249,484,025,146.00
  5. Step 5: Solve for x
    x = 249,484,025,146.00/571,157.76
  6. Step 6: Final answer
    x = 436,804.05

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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.