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Finding the Fourth Proportional to 702,710.46, 971,374.80 and 626,980.14

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Solution

The fourth proportional to 702,710.46, 971,374.80 and 626,980.14 is: 866,690.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,710.46 : 971,374.80 = 626,980.14 : x
  2. Step 2: Convert to fraction form
    702,710.46/971,374.80 = 626,980.14/x
  3. Step 3: Cross multiply
    702,710.46x = 971,374.80 × 626,980.14
  4. Step 4: Simplify right side
    702,710.46x = 609,032,708,096.47
  5. Step 5: Solve for x
    x = 609,032,708,096.47/702,710.46
  6. Step 6: Final answer
    x = 866,690.82

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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.