Home / 1,680,609.40-2,319,437.04-955,565.76

Finding the Fourth Proportional to 1,680,609.40, 2,319,437.04 and 955,565.76

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Solution

The fourth proportional to 1,680,609.40, 2,319,437.04 and 955,565.76 is: 1,318,792.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,680,609.40 : 2,319,437.04 = 955,565.76 : x
  2. Step 2: Convert to fraction form
    1,680,609.40/2,319,437.04 = 955,565.76/x
  3. Step 3: Cross multiply
    1,680,609.40x = 2,319,437.04 × 955,565.76
  4. Step 4: Simplify right side
    1,680,609.40x = 2,216,374,617,899.75
  5. Step 5: Solve for x
    x = 2,216,374,617,899.75/1,680,609.40
  6. Step 6: Final answer
    x = 1,318,792.23

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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.