Home / 612,731.40-919,097.10-586,815.45

Finding the Fourth Proportional to 612,731.40, 919,097.10 and 586,815.45

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Solution

The fourth proportional to 612,731.40, 919,097.10 and 586,815.45 is: 880,223.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,731.40 : 919,097.10 = 586,815.45 : x
  2. Step 2: Convert to fraction form
    612,731.40/919,097.10 = 586,815.45/x
  3. Step 3: Cross multiply
    612,731.40x = 919,097.10 × 586,815.45
  4. Step 4: Simplify right side
    612,731.40x = 539,340,378,330.20
  5. Step 5: Solve for x
    x = 539,340,378,330.20/612,731.40
  6. Step 6: Final answer
    x = 880,223.18

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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.