Home / 1,298,390.40-1,947,585.60-411,926.40

Finding the Fourth Proportional to 1,298,390.40, 1,947,585.60 and 411,926.40

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Solution

The fourth proportional to 1,298,390.40, 1,947,585.60 and 411,926.40 is: 617,889.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,298,390.40 : 1,947,585.60 = 411,926.40 : x
  2. Step 2: Convert to fraction form
    1,298,390.40/1,947,585.60 = 411,926.40/x
  3. Step 3: Cross multiply
    1,298,390.40x = 1,947,585.60 × 411,926.40
  4. Step 4: Simplify right side
    1,298,390.40x = 802,261,924,899.84
  5. Step 5: Solve for x
    x = 802,261,924,899.84/1,298,390.40
  6. Step 6: Final answer
    x = 617,889.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.