Home / 1,207,308.28-1,666,116.66-663,459.16

Finding the Fourth Proportional to 1,207,308.28, 1,666,116.66 and 663,459.16

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Solution

The fourth proportional to 1,207,308.28, 1,666,116.66 and 663,459.16 is: 915,590.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,207,308.28 : 1,666,116.66 = 663,459.16 : x
  2. Step 2: Convert to fraction form
    1,207,308.28/1,666,116.66 = 663,459.16/x
  3. Step 3: Cross multiply
    1,207,308.28x = 1,666,116.66 × 663,459.16
  4. Step 4: Simplify right side
    1,207,308.28x = 1,105,400,359,705.61
  5. Step 5: Solve for x
    x = 1,105,400,359,705.61/1,207,308.28
  6. Step 6: Final answer
    x = 915,590.80

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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.