Home / 905,200.48-1,249,198.67-497,328.73

Finding the Fourth Proportional to 905,200.48, 1,249,198.67 and 497,328.73

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Solution

The fourth proportional to 905,200.48, 1,249,198.67 and 497,328.73 is: 686,325.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,200.48 : 1,249,198.67 = 497,328.73 : x
  2. Step 2: Convert to fraction form
    905,200.48/1,249,198.67 = 497,328.73/x
  3. Step 3: Cross multiply
    905,200.48x = 1,249,198.67 × 497,328.73
  4. Step 4: Simplify right side
    905,200.48x = 621,262,388,068.79
  5. Step 5: Solve for x
    x = 621,262,388,068.79/905,200.48
  6. Step 6: Final answer
    x = 686,325.74

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Double scale
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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.