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Finding the Fourth Proportional to 575,042.76, 793,564.40 and 316,929.18

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Solution

The fourth proportional to 575,042.76, 793,564.40 and 316,929.18 is: 437,365.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,042.76 : 793,564.40 = 316,929.18 : x
  2. Step 2: Convert to fraction form
    575,042.76/793,564.40 = 316,929.18/x
  3. Step 3: Cross multiply
    575,042.76x = 793,564.40 × 316,929.18
  4. Step 4: Simplify right side
    575,042.76x = 251,503,714,569.19
  5. Step 5: Solve for x
    x = 251,503,714,569.19/575,042.76
  6. Step 6: Final answer
    x = 437,365.24

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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.