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Finding the Fourth Proportional to 804,039,221.80, 1,127,185,460.60 and 804,039,221.80

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Solution

The fourth proportional to 804,039,221.80, 1,127,185,460.60 and 804,039,221.80 is: 1,127,185,460.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    804,039,221.80 : 1,127,185,460.60 = 804,039,221.80 : x
  2. Step 2: Convert to fraction form
    804,039,221.80/1,127,185,460.60 = 804,039,221.80/x
  3. Step 3: Cross multiply
    804,039,221.80x = 1,127,185,460.60 × 804,039,221.80
  4. Step 4: Simplify right side
    804,039,221.80x = 906,301,320,565,098,368
  5. Step 5: Solve for x
    x = 906,301,320,565,098,368/804,039,221.80
  6. Step 6: Final answer
    x = 1,127,185,460.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.