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Finding the Fourth Proportional to 1,303,203,892.88, 1,798,456,847.44 and 708,528,390.40

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Solution

The fourth proportional to 1,303,203,892.88, 1,798,456,847.44 and 708,528,390.40 is: 977,788,466.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,303,203,892.88 : 1,798,456,847.44 = 708,528,390.40 : x
  2. Step 2: Convert to fraction form
    1,303,203,892.88/1,798,456,847.44 = 708,528,390.40/x
  3. Step 3: Cross multiply
    1,303,203,892.88x = 1,798,456,847.44 × 708,528,390.40
  4. Step 4: Simplify right side
    1,303,203,892.88x = 1,274,257,735,320,521,472
  5. Step 5: Solve for x
    x = 1,274,257,735,320,521,472/1,303,203,892.88
  6. Step 6: Final answer
    x = 977,788,466.01

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1.5x scale

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.