Home / 905,586.75-1,249,436.90-542,878.27

Finding the Fourth Proportional to 905,586.75, 1,249,436.90 and 542,878.27

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Solution

The fourth proportional to 905,586.75, 1,249,436.90 and 542,878.27 is: 749,008.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,586.75 : 1,249,436.90 = 542,878.27 : x
  2. Step 2: Convert to fraction form
    905,586.75/1,249,436.90 = 542,878.27/x
  3. Step 3: Cross multiply
    905,586.75x = 1,249,436.90 × 542,878.27
  4. Step 4: Simplify right side
    905,586.75x = 678,292,140,979.77
  5. Step 5: Solve for x
    x = 678,292,140,979.77/905,586.75
  6. Step 6: Final answer
    x = 749,008.46

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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.