Home / 1,069,481-1,475,883.78-639,779.24

Finding the Fourth Proportional to 1,069,481, 1,475,883.78 and 639,779.24

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Solution

The fourth proportional to 1,069,481, 1,475,883.78 and 639,779.24 is: 882,895.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,069,481 : 1,475,883.78 = 639,779.24 : x
  2. Step 2: Convert to fraction form
    1,069,481/1,475,883.78 = 639,779.24/x
  3. Step 3: Cross multiply
    1,069,481x = 1,475,883.78 × 639,779.24
  4. Step 4: Simplify right side
    1,069,481x = 944,239,803,096.73
  5. Step 5: Solve for x
    x = 944,239,803,096.73/1,069,481
  6. Step 6: Final answer
    x = 882,895.35

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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.