Home / 877,454.91-1,210,895.78-514,884.80

Finding the Fourth Proportional to 877,454.91, 1,210,895.78 and 514,884.80

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Solution

The fourth proportional to 877,454.91, 1,210,895.78 and 514,884.80 is: 710,545.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,454.91 : 1,210,895.78 = 514,884.80 : x
  2. Step 2: Convert to fraction form
    877,454.91/1,210,895.78 = 514,884.80/x
  3. Step 3: Cross multiply
    877,454.91x = 1,210,895.78 × 514,884.80
  4. Step 4: Simplify right side
    877,454.91x = 623,471,831,958.96
  5. Step 5: Solve for x
    x = 623,471,831,958.96/877,454.91
  6. Step 6: Final answer
    x = 710,545.72

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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.