Home / 708,588,712.80-1,062,883,069.20-490,178,271.60

Finding the Fourth Proportional to 708,588,712.80, 1,062,883,069.20 and 490,178,271.60

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Solution

The fourth proportional to 708,588,712.80, 1,062,883,069.20 and 490,178,271.60 is: 735,267,407.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,588,712.80 : 1,062,883,069.20 = 490,178,271.60 : x
  2. Step 2: Convert to fraction form
    708,588,712.80/1,062,883,069.20 = 490,178,271.60/x
  3. Step 3: Cross multiply
    708,588,712.80x = 1,062,883,069.20 × 490,178,271.60
  4. Step 4: Simplify right side
    708,588,712.80x = 521,002,185,773,359,232
  5. Step 5: Solve for x
    x = 521,002,185,773,359,232/708,588,712.80
  6. Step 6: Final answer
    x = 735,267,407.40

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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.