Home / 905,435.92-1,249,426.78-497,516.68

Finding the Fourth Proportional to 905,435.92, 1,249,426.78 and 497,516.68

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Solution

The fourth proportional to 905,435.92, 1,249,426.78 and 497,516.68 is: 686,531.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,435.92 : 1,249,426.78 = 497,516.68 : x
  2. Step 2: Convert to fraction form
    905,435.92/1,249,426.78 = 497,516.68/x
  3. Step 3: Cross multiply
    905,435.92x = 1,249,426.78 × 497,516.68
  4. Step 4: Simplify right side
    905,435.92x = 621,610,663,488.69
  5. Step 5: Solve for x
    x = 621,610,663,488.69/905,435.92
  6. Step 6: Final answer
    x = 686,531.92

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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.