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Finding the Fourth Proportional to 575,802.21, 861,931.84 and 375,691.71

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Solution

The fourth proportional to 575,802.21, 861,931.84 and 375,691.71 is: 562,381.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,802.21 : 861,931.84 = 375,691.71 : x
  2. Step 2: Convert to fraction form
    575,802.21/861,931.84 = 375,691.71/x
  3. Step 3: Cross multiply
    575,802.21x = 861,931.84 × 375,691.71
  4. Step 4: Simplify right side
    575,802.21x = 323,820,647,812.28
  5. Step 5: Solve for x
    x = 323,820,647,812.28/575,802.21
  6. Step 6: Final answer
    x = 562,381.74

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.