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Finding the Fourth Proportional to 885,772.79, 1,326,661.59 and 411,460.01

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Solution

The fourth proportional to 885,772.79, 1,326,661.59 and 411,460.01 is: 616,262.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,772.79 : 1,326,661.59 = 411,460.01 : x
  2. Step 2: Convert to fraction form
    885,772.79/1,326,661.59 = 411,460.01/x
  3. Step 3: Cross multiply
    885,772.79x = 1,326,661.59 × 411,460.01
  4. Step 4: Simplify right side
    885,772.79x = 545,868,191,088.02
  5. Step 5: Solve for x
    x = 545,868,191,088.02/885,772.79
  6. Step 6: Final answer
    x = 616,262.09

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Double scale
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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.