Home / 1,185,799.90-1,636,404.38-641,935.68

Finding the Fourth Proportional to 1,185,799.90, 1,636,404.38 and 641,935.68

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Solution

The fourth proportional to 1,185,799.90, 1,636,404.38 and 641,935.68 is: 885,871.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,185,799.90 : 1,636,404.38 = 641,935.68 : x
  2. Step 2: Convert to fraction form
    1,185,799.90/1,636,404.38 = 641,935.68/x
  3. Step 3: Cross multiply
    1,185,799.90x = 1,636,404.38 × 641,935.68
  4. Step 4: Simplify right side
    1,185,799.90x = 1,050,466,358,430.28
  5. Step 5: Solve for x
    x = 1,050,466,358,430.28/1,185,799.90
  6. Step 6: Final answer
    x = 885,871.52

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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.