Home / 628,059.20-942,088.80-559,246.40

Finding the Fourth Proportional to 628,059.20, 942,088.80 and 559,246.40

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Solution

The fourth proportional to 628,059.20, 942,088.80 and 559,246.40 is: 838,869.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,059.20 : 942,088.80 = 559,246.40 : x
  2. Step 2: Convert to fraction form
    628,059.20/942,088.80 = 559,246.40/x
  3. Step 3: Cross multiply
    628,059.20x = 942,088.80 × 559,246.40
  4. Step 4: Simplify right side
    628,059.20x = 526,859,769,880.32
  5. Step 5: Solve for x
    x = 526,859,769,880.32/628,059.20
  6. Step 6: Final answer
    x = 838,869.60

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Similar ratio
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1.5x scale

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.