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Finding the Fourth Proportional to 710,515.80, 1,065,773.70 and 706,368.60

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Solution

The fourth proportional to 710,515.80, 1,065,773.70 and 706,368.60 is: 1,059,552.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    710,515.80 : 1,065,773.70 = 706,368.60 : x
  2. Step 2: Convert to fraction form
    710,515.80/1,065,773.70 = 706,368.60/x
  3. Step 3: Cross multiply
    710,515.80x = 1,065,773.70 × 706,368.60
  4. Step 4: Simplify right side
    710,515.80x = 752,829,076,385.82
  5. Step 5: Solve for x
    x = 752,829,076,385.82/710,515.80
  6. Step 6: Final answer
    x = 1,059,552.90

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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.