Home / 779,005.24-1,075,206.54-456,819.12

Finding the Fourth Proportional to 779,005.24, 1,075,206.54 and 456,819.12

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Solution

The fourth proportional to 779,005.24, 1,075,206.54 and 456,819.12 is: 630,515.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    779,005.24 : 1,075,206.54 = 456,819.12 : x
  2. Step 2: Convert to fraction form
    779,005.24/1,075,206.54 = 456,819.12/x
  3. Step 3: Cross multiply
    779,005.24x = 1,075,206.54 × 456,819.12
  4. Step 4: Simplify right side
    779,005.24x = 491,174,905,421.05
  5. Step 5: Solve for x
    x = 491,174,905,421.05/779,005.24
  6. Step 6: Final answer
    x = 630,515.53

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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.