Home / 776,929.76-1,072,464-607,218.56

Finding the Fourth Proportional to 776,929.76, 1,072,464 and 607,218.56

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Solution

The fourth proportional to 776,929.76, 1,072,464 and 607,218.56 is: 838,196.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    776,929.76 : 1,072,464 = 607,218.56 : x
  2. Step 2: Convert to fraction form
    776,929.76/1,072,464 = 607,218.56/x
  3. Step 3: Cross multiply
    776,929.76x = 1,072,464 × 607,218.56
  4. Step 4: Simplify right side
    776,929.76x = 651,220,045,731.84
  5. Step 5: Solve for x
    x = 651,220,045,731.84/776,929.76
  6. Step 6: Final answer
    x = 838,196.81

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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.