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Finding the Fourth Proportional to 573,089.90, 790,881.86 and 314,962.15

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Solution

The fourth proportional to 573,089.90, 790,881.86 and 314,962.15 is: 434,657.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,089.90 : 790,881.86 = 314,962.15 : x
  2. Step 2: Convert to fraction form
    573,089.90/790,881.86 = 314,962.15/x
  3. Step 3: Cross multiply
    573,089.90x = 790,881.86 × 314,962.15
  4. Step 4: Simplify right side
    573,089.90x = 249,097,851,918.29
  5. Step 5: Solve for x
    x = 249,097,851,918.29/573,089.90
  6. Step 6: Final answer
    x = 434,657.55

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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.