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Finding the Fourth Proportional to 713,182.20, 1,069,514.10 and 358,078.20

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Solution

The fourth proportional to 713,182.20, 1,069,514.10 and 358,078.20 is: 536,987.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    713,182.20 : 1,069,514.10 = 358,078.20 : x
  2. Step 2: Convert to fraction form
    713,182.20/1,069,514.10 = 358,078.20/x
  3. Step 3: Cross multiply
    713,182.20x = 1,069,514.10 × 358,078.20
  4. Step 4: Simplify right side
    713,182.20x = 382,969,683,802.62
  5. Step 5: Solve for x
    x = 382,969,683,802.62/713,182.20
  6. Step 6: Final answer
    x = 536,987.16

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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.