Home / 870,143.10-1,304,523.45-476,159.10

Finding the Fourth Proportional to 870,143.10, 1,304,523.45 and 476,159.10

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Solution

The fourth proportional to 870,143.10, 1,304,523.45 and 476,159.10 is: 713,860.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,143.10 : 1,304,523.45 = 476,159.10 : x
  2. Step 2: Convert to fraction form
    870,143.10/1,304,523.45 = 476,159.10/x
  3. Step 3: Cross multiply
    870,143.10x = 1,304,523.45 × 476,159.10
  4. Step 4: Simplify right side
    870,143.10x = 621,160,711,880.90
  5. Step 5: Solve for x
    x = 621,160,711,880.90/870,143.10
  6. Step 6: Final answer
    x = 713,860.41

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.