Home / 911,878,962.47-1,259,010,695.17-577,648,084.94

Finding the Fourth Proportional to 911,878,962.47, 1,259,010,695.17 and 577,648,084.94

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Solution

The fourth proportional to 911,878,962.47, 1,259,010,695.17 and 577,648,084.94 is: 797,545,668.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    911,878,962.47 : 1,259,010,695.17 = 577,648,084.94 : x
  2. Step 2: Convert to fraction form
    911,878,962.47/1,259,010,695.17 = 577,648,084.94/x
  3. Step 3: Cross multiply
    911,878,962.47x = 1,259,010,695.17 × 577,648,084.94
  4. Step 4: Simplify right side
    911,878,962.47x = 727,265,116,974,745,216
  5. Step 5: Solve for x
    x = 727,265,116,974,745,216/911,878,962.47
  6. Step 6: Final answer
    x = 797,545,668.79

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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.