Home / 1,636,385-2,258,208.90-911,296.20

Finding the Fourth Proportional to 1,636,385, 2,258,208.90 and 911,296.20

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Solution

The fourth proportional to 1,636,385, 2,258,208.90 and 911,296.20 is: 1,257,587.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,636,385 : 2,258,208.90 = 911,296.20 : x
  2. Step 2: Convert to fraction form
    1,636,385/2,258,208.90 = 911,296.20/x
  3. Step 3: Cross multiply
    1,636,385x = 2,258,208.90 × 911,296.20
  4. Step 4: Simplify right side
    1,636,385x = 2,057,897,189,376.18
  5. Step 5: Solve for x
    x = 2,057,897,189,376.18/1,636,385
  6. Step 6: Final answer
    x = 1,257,587.42

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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.