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Finding the Fourth Proportional to 584,918.31, 807,189.30 and 316,646.31

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Solution

The fourth proportional to 584,918.31, 807,189.30 and 316,646.31 is: 436,973.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    584,918.31 : 807,189.30 = 316,646.31 : x
  2. Step 2: Convert to fraction form
    584,918.31/807,189.30 = 316,646.31/x
  3. Step 3: Cross multiply
    584,918.31x = 807,189.30 × 316,646.31
  4. Step 4: Simplify right side
    584,918.31x = 255,593,513,316.48
  5. Step 5: Solve for x
    x = 255,593,513,316.48/584,918.31
  6. Step 6: Final answer
    x = 436,973.01

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.