Home / 919,634,238.72-1,270,755,328.28-654,856,548.35

Finding the Fourth Proportional to 919,634,238.72, 1,270,755,328.28 and 654,856,548.35

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Solution

The fourth proportional to 919,634,238.72, 1,270,755,328.28 and 654,856,548.35 is: 904,884,151.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,634,238.72 : 1,270,755,328.28 = 654,856,548.35 : x
  2. Step 2: Convert to fraction form
    919,634,238.72/1,270,755,328.28 = 654,856,548.35/x
  3. Step 3: Cross multiply
    919,634,238.72x = 1,270,755,328.28 × 654,856,548.35
  4. Step 4: Simplify right side
    919,634,238.72x = 832,162,448,065,184,000
  5. Step 5: Solve for x
    x = 832,162,448,065,184,000/919,634,238.72
  6. Step 6: Final answer
    x = 904,884,151.79

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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.