Home / 414,905,855.40-622,358,783.10-391,097,298.60

Finding the Fourth Proportional to 414,905,855.40, 622,358,783.10 and 391,097,298.60

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Solution

The fourth proportional to 414,905,855.40, 622,358,783.10 and 391,097,298.60 is: 586,645,947.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    414,905,855.40 : 622,358,783.10 = 391,097,298.60 : x
  2. Step 2: Convert to fraction form
    414,905,855.40/622,358,783.10 = 391,097,298.60/x
  3. Step 3: Cross multiply
    414,905,855.40x = 622,358,783.10 × 391,097,298.60
  4. Step 4: Simplify right side
    414,905,855.40x = 243,402,838,830,393,344
  5. Step 5: Solve for x
    x = 243,402,838,830,393,344/414,905,855.40
  6. Step 6: Final answer
    x = 586,645,947.90

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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.