Home / 905,126.66-1,249,075.61-497,254.92

Finding the Fourth Proportional to 905,126.66, 1,249,075.61 and 497,254.92

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Solution

The fourth proportional to 905,126.66, 1,249,075.61 and 497,254.92 is: 686,212.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,126.66 : 1,249,075.61 = 497,254.92 : x
  2. Step 2: Convert to fraction form
    905,126.66/1,249,075.61 = 497,254.92/x
  3. Step 3: Cross multiply
    905,126.66x = 1,249,075.61 × 497,254.92
  4. Step 4: Simplify right side
    905,126.66x = 621,108,992,524.50
  5. Step 5: Solve for x
    x = 621,108,992,524.50/905,126.66
  6. Step 6: Final answer
    x = 686,212.24

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Double scale
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Similar ratio
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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.