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Finding the Fourth Proportional to 571,224.78, 788,290.14 and 316,592.34

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Solution

The fourth proportional to 571,224.78, 788,290.14 and 316,592.34 is: 436,897.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,224.78 : 788,290.14 = 316,592.34 : x
  2. Step 2: Convert to fraction form
    571,224.78/788,290.14 = 316,592.34/x
  3. Step 3: Cross multiply
    571,224.78x = 788,290.14 × 316,592.34
  4. Step 4: Simplify right side
    571,224.78x = 249,566,620,021.53
  5. Step 5: Solve for x
    x = 249,566,620,021.53/571,224.78
  6. Step 6: Final answer
    x = 436,897.40

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Double scale
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Similar ratio
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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.