Home / 977,662,977.48-1,349,200,478.79-531,652,426.20

Finding the Fourth Proportional to 977,662,977.48, 1,349,200,478.79 and 531,652,426.20

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Solution

The fourth proportional to 977,662,977.48, 1,349,200,478.79 and 531,652,426.20 is: 733,694,253.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    977,662,977.48 : 1,349,200,478.79 = 531,652,426.20 : x
  2. Step 2: Convert to fraction form
    977,662,977.48/1,349,200,478.79 = 531,652,426.20/x
  3. Step 3: Cross multiply
    977,662,977.48x = 1,349,200,478.79 × 531,652,426.20
  4. Step 4: Simplify right side
    977,662,977.48x = 717,305,707,978,905,088
  5. Step 5: Solve for x
    x = 717,305,707,978,905,088/977,662,977.48
  6. Step 6: Final answer
    x = 733,694,253.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.