Home / 989,193.60-1,483,790.40-457,752.60

Finding the Fourth Proportional to 989,193.60, 1,483,790.40 and 457,752.60

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Solution

The fourth proportional to 989,193.60, 1,483,790.40 and 457,752.60 is: 686,628.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,193.60 : 1,483,790.40 = 457,752.60 : x
  2. Step 2: Convert to fraction form
    989,193.60/1,483,790.40 = 457,752.60/x
  3. Step 3: Cross multiply
    989,193.60x = 1,483,790.40 × 457,752.60
  4. Step 4: Simplify right side
    989,193.60x = 679,208,913,455.04
  5. Step 5: Solve for x
    x = 679,208,913,455.04/989,193.60
  6. Step 6: Final answer
    x = 686,628.90

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Double scale
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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.