Home / 877,521.06-1,210,979.13-495,572.43

Finding the Fourth Proportional to 877,521.06, 1,210,979.13 and 495,572.43

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Solution

The fourth proportional to 877,521.06, 1,210,979.13 and 495,572.43 is: 683,889.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,521.06 : 1,210,979.13 = 495,572.43 : x
  2. Step 2: Convert to fraction form
    877,521.06/1,210,979.13 = 495,572.43/x
  3. Step 3: Cross multiply
    877,521.06x = 1,210,979.13 × 495,572.43
  4. Step 4: Simplify right side
    877,521.06x = 600,127,870,133.39
  5. Step 5: Solve for x
    x = 600,127,870,133.39/877,521.06
  6. Step 6: Final answer
    x = 683,889.99

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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.