Home / 612,752.51-845,586.33-340,814.55

Finding the Fourth Proportional to 612,752.51, 845,586.33 and 340,814.55

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Solution

The fourth proportional to 612,752.51, 845,586.33 and 340,814.55 is: 470,317.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,752.51 : 845,586.33 = 340,814.55 : x
  2. Step 2: Convert to fraction form
    612,752.51/845,586.33 = 340,814.55/x
  3. Step 3: Cross multiply
    612,752.51x = 845,586.33 × 340,814.55
  4. Step 4: Simplify right side
    612,752.51x = 288,188,124,545.10
  5. Step 5: Solve for x
    x = 288,188,124,545.10/612,752.51
  6. Step 6: Final answer
    x = 470,317.33

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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.