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Finding the Fourth Proportional to 822,607.60, 1,231,505.70 and 586,411.60

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Solution

The fourth proportional to 822,607.60, 1,231,505.70 and 586,411.60 is: 877,902.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    822,607.60 : 1,231,505.70 = 586,411.60 : x
  2. Step 2: Convert to fraction form
    822,607.60/1,231,505.70 = 586,411.60/x
  3. Step 3: Cross multiply
    822,607.60x = 1,231,505.70 × 586,411.60
  4. Step 4: Simplify right side
    822,607.60x = 722,169,227,946.12
  5. Step 5: Solve for x
    x = 722,169,227,946.12/822,607.60
  6. Step 6: Final answer
    x = 877,902.45

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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.