Home / 812,653.88-1,214,038.76-526,009.19

Finding the Fourth Proportional to 812,653.88, 1,214,038.76 and 526,009.19

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Solution

The fourth proportional to 812,653.88, 1,214,038.76 and 526,009.19 is: 785,814.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,653.88 : 1,214,038.76 = 526,009.19 : x
  2. Step 2: Convert to fraction form
    812,653.88/1,214,038.76 = 526,009.19/x
  3. Step 3: Cross multiply
    812,653.88x = 1,214,038.76 × 526,009.19
  4. Step 4: Simplify right side
    812,653.88x = 638,595,536,075.97
  5. Step 5: Solve for x
    x = 638,595,536,075.97/812,653.88
  6. Step 6: Final answer
    x = 785,814.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.