Home / 840,376.89-1,159,701.30-458,417.34

Finding the Fourth Proportional to 840,376.89, 1,159,701.30 and 458,417.34

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Solution

The fourth proportional to 840,376.89, 1,159,701.30 and 458,417.34 is: 632,605.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,376.89 : 1,159,701.30 = 458,417.34 : x
  2. Step 2: Convert to fraction form
    840,376.89/1,159,701.30 = 458,417.34/x
  3. Step 3: Cross multiply
    840,376.89x = 1,159,701.30 × 458,417.34
  4. Step 4: Simplify right side
    840,376.89x = 531,627,185,140.54
  5. Step 5: Solve for x
    x = 531,627,185,140.54/840,376.89
  6. Step 6: Final answer
    x = 632,605.67

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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.