Home / 626,856.01-865,071.50-340,376.78

Finding the Fourth Proportional to 626,856.01, 865,071.50 and 340,376.78

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Solution

The fourth proportional to 626,856.01, 865,071.50 and 340,376.78 is: 469,725.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,856.01 : 865,071.50 = 340,376.78 : x
  2. Step 2: Convert to fraction form
    626,856.01/865,071.50 = 340,376.78/x
  3. Step 3: Cross multiply
    626,856.01x = 865,071.50 × 340,376.78
  4. Step 4: Simplify right side
    626,856.01x = 294,450,252,100.57
  5. Step 5: Solve for x
    x = 294,450,252,100.57/626,856.01
  6. Step 6: Final answer
    x = 469,725.50

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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.