Home / 640,116.57-883,386.27-368,184.18

Finding the Fourth Proportional to 640,116.57, 883,386.27 and 368,184.18

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Solution

The fourth proportional to 640,116.57, 883,386.27 and 368,184.18 is: 508,108.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    640,116.57 : 883,386.27 = 368,184.18 : x
  2. Step 2: Convert to fraction form
    640,116.57/883,386.27 = 368,184.18/x
  3. Step 3: Cross multiply
    640,116.57x = 883,386.27 × 368,184.18
  4. Step 4: Simplify right side
    640,116.57x = 325,248,849,443.21
  5. Step 5: Solve for x
    x = 325,248,849,443.21/640,116.57
  6. Step 6: Final answer
    x = 508,108.78

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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.