Home / 876,715,666.88-1,209,725,449.44-524,437,223.36

Finding the Fourth Proportional to 876,715,666.88, 1,209,725,449.44 and 524,437,223.36

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Solution

The fourth proportional to 876,715,666.88, 1,209,725,449.44 and 524,437,223.36 is: 723,638,323.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,715,666.88 : 1,209,725,449.44 = 524,437,223.36 : x
  2. Step 2: Convert to fraction form
    876,715,666.88/1,209,725,449.44 = 524,437,223.36/x
  3. Step 3: Cross multiply
    876,715,666.88x = 1,209,725,449.44 × 524,437,223.36
  4. Step 4: Simplify right side
    876,715,666.88x = 634,425,055,732,241,664
  5. Step 5: Solve for x
    x = 634,425,055,732,241,664/876,715,666.88
  6. Step 6: Final answer
    x = 723,638,323.92

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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.