Home / 644,829.60-967,244.40-636,535.20

Finding the Fourth Proportional to 644,829.60, 967,244.40 and 636,535.20

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Solution

The fourth proportional to 644,829.60, 967,244.40 and 636,535.20 is: 954,802.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,829.60 : 967,244.40 = 636,535.20 : x
  2. Step 2: Convert to fraction form
    644,829.60/967,244.40 = 636,535.20/x
  3. Step 3: Cross multiply
    644,829.60x = 967,244.40 × 636,535.20
  4. Step 4: Simplify right side
    644,829.60x = 615,685,107,602.88
  5. Step 5: Solve for x
    x = 615,685,107,602.88/644,829.60
  6. Step 6: Final answer
    x = 954,802.80

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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.