Home / 1,018,689.06-1,405,205.51-636,051.54

Finding the Fourth Proportional to 1,018,689.06, 1,405,205.51 and 636,051.54

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Solution

The fourth proportional to 1,018,689.06, 1,405,205.51 and 636,051.54 is: 877,385.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,018,689.06 : 1,405,205.51 = 636,051.54 : x
  2. Step 2: Convert to fraction form
    1,018,689.06/1,405,205.51 = 636,051.54/x
  3. Step 3: Cross multiply
    1,018,689.06x = 1,405,205.51 × 636,051.54
  4. Step 4: Simplify right side
    1,018,689.06x = 893,783,123,216.09
  5. Step 5: Solve for x
    x = 893,783,123,216.09/1,018,689.06
  6. Step 6: Final answer
    x = 877,385.62

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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.