Home / 905,545.22-1,249,591.95-497,638.28

Finding the Fourth Proportional to 905,545.22, 1,249,591.95 and 497,638.28

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Solution

The fourth proportional to 905,545.22, 1,249,591.95 and 497,638.28 is: 686,707.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,545.22 : 1,249,591.95 = 497,638.28 : x
  2. Step 2: Convert to fraction form
    905,545.22/1,249,591.95 = 497,638.28/x
  3. Step 3: Cross multiply
    905,545.22x = 1,249,591.95 × 497,638.28
  4. Step 4: Simplify right side
    905,545.22x = 621,844,788,699.85
  5. Step 5: Solve for x
    x = 621,844,788,699.85/905,545.22
  6. Step 6: Final answer
    x = 686,707.60

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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.