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Finding the Fourth Proportional to 586,720.80, 822,590.10 and 586,720.80

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Solution

The fourth proportional to 586,720.80, 822,590.10 and 586,720.80 is: 822,590.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,720.80 : 822,590.10 = 586,720.80 : x
  2. Step 2: Convert to fraction form
    586,720.80/822,590.10 = 586,720.80/x
  3. Step 3: Cross multiply
    586,720.80x = 822,590.10 × 586,720.80
  4. Step 4: Simplify right side
    586,720.80x = 482,630,721,544.08
  5. Step 5: Solve for x
    x = 482,630,721,544.08/586,720.80
  6. Step 6: Final answer
    x = 822,590.10

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.