Home / 905,066.70-1,249,000.20-497,176.80

Finding the Fourth Proportional to 905,066.70, 1,249,000.20 and 497,176.80

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Solution

The fourth proportional to 905,066.70, 1,249,000.20 and 497,176.80 is: 686,108.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,066.70 : 1,249,000.20 = 497,176.80 : x
  2. Step 2: Convert to fraction form
    905,066.70/1,249,000.20 = 497,176.80/x
  3. Step 3: Cross multiply
    905,066.70x = 1,249,000.20 × 497,176.80
  4. Step 4: Simplify right side
    905,066.70x = 620,973,922,635.36
  5. Step 5: Solve for x
    x = 620,973,922,635.36/905,066.70
  6. Step 6: Final answer
    x = 686,108.46

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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.