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Finding the Fourth Proportional to 571,456.84, 788,629.64 and 316,792.84

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Solution

The fourth proportional to 571,456.84, 788,629.64 and 316,792.84 is: 437,184.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,456.84 : 788,629.64 = 316,792.84 : x
  2. Step 2: Convert to fraction form
    571,456.84/788,629.64 = 316,792.84/x
  3. Step 3: Cross multiply
    571,456.84x = 788,629.64 × 316,792.84
  4. Step 4: Simplify right side
    571,456.84x = 249,832,223,363.78
  5. Step 5: Solve for x
    x = 249,832,223,363.78/571,456.84
  6. Step 6: Final answer
    x = 437,184.76

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Double scale
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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.