Home / 717,509,915.70-1,076,264,873.55-654,020,430.90

Finding the Fourth Proportional to 717,509,915.70, 1,076,264,873.55 and 654,020,430.90

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Solution

The fourth proportional to 717,509,915.70, 1,076,264,873.55 and 654,020,430.90 is: 981,030,646.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    717,509,915.70 : 1,076,264,873.55 = 654,020,430.90 : x
  2. Step 2: Convert to fraction form
    717,509,915.70/1,076,264,873.55 = 654,020,430.90/x
  3. Step 3: Cross multiply
    717,509,915.70x = 1,076,264,873.55 × 654,020,430.90
  4. Step 4: Simplify right side
    717,509,915.70x = 703,899,216,361,704,960
  5. Step 5: Solve for x
    x = 703,899,216,361,704,960/717,509,915.70
  6. Step 6: Final answer
    x = 981,030,646.35

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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.