Home / 910,332,050.57-1,256,262,188.27-492,644,372.57

Finding the Fourth Proportional to 910,332,050.57, 1,256,262,188.27 and 492,644,372.57

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Solution

The fourth proportional to 910,332,050.57, 1,256,262,188.27 and 492,644,372.57 is: 679,851,376.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    910,332,050.57 : 1,256,262,188.27 = 492,644,372.57 : x
  2. Step 2: Convert to fraction form
    910,332,050.57/1,256,262,188.27 = 492,644,372.57/x
  3. Step 3: Cross multiply
    910,332,050.57x = 1,256,262,188.27 × 492,644,372.57
  4. Step 4: Simplify right side
    910,332,050.57x = 618,890,497,521,226,240
  5. Step 5: Solve for x
    x = 618,890,497,521,226,240/910,332,050.57
  6. Step 6: Final answer
    x = 679,851,376.36

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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.