Home / 1,214,788,585.28-1,676,399,901.68-657,858,887.60

Finding the Fourth Proportional to 1,214,788,585.28, 1,676,399,901.68 and 657,858,887.60

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Solution

The fourth proportional to 1,214,788,585.28, 1,676,399,901.68 and 657,858,887.60 is: 907,840,745.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,214,788,585.28 : 1,676,399,901.68 = 657,858,887.60 : x
  2. Step 2: Convert to fraction form
    1,214,788,585.28/1,676,399,901.68 = 657,858,887.60/x
  3. Step 3: Cross multiply
    1,214,788,585.28x = 1,676,399,901.68 × 657,858,887.60
  4. Step 4: Simplify right side
    1,214,788,585.28x = 1,102,834,574,485,216,768
  5. Step 5: Solve for x
    x = 1,102,834,574,485,216,768/1,214,788,585.28
  6. Step 6: Final answer
    x = 907,840,745.17

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Double scale
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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.