Home / 766,626,898.36-1,058,817,794.88-515,294,945.41

Finding the Fourth Proportional to 766,626,898.36, 1,058,817,794.88 and 515,294,945.41

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Solution

The fourth proportional to 766,626,898.36, 1,058,817,794.88 and 515,294,945.41 is: 711,693,600.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,626,898.36 : 1,058,817,794.88 = 515,294,945.41 : x
  2. Step 2: Convert to fraction form
    766,626,898.36/1,058,817,794.88 = 515,294,945.41/x
  3. Step 3: Cross multiply
    766,626,898.36x = 1,058,817,794.88 × 515,294,945.41
  4. Step 4: Simplify right side
    766,626,898.36x = 545,603,457,811,826,176
  5. Step 5: Solve for x
    x = 545,603,457,811,826,176/766,626,898.36
  6. Step 6: Final answer
    x = 711,693,600.86

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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.