Home / 1,005,343.24-1,386,820.02-637,146.76

Finding the Fourth Proportional to 1,005,343.24, 1,386,820.02 and 637,146.76

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Solution

The fourth proportional to 1,005,343.24, 1,386,820.02 and 637,146.76 is: 878,911.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,005,343.24 : 1,386,820.02 = 637,146.76 : x
  2. Step 2: Convert to fraction form
    1,005,343.24/1,386,820.02 = 637,146.76/x
  3. Step 3: Cross multiply
    1,005,343.24x = 1,386,820.02 × 637,146.76
  4. Step 4: Simplify right side
    1,005,343.24x = 883,607,882,446.14
  5. Step 5: Solve for x
    x = 883,607,882,446.14/1,005,343.24
  6. Step 6: Final answer
    x = 878,911.65

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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.