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Finding the Fourth Proportional to 950,888.16, 1,425,807.36 and 390,316.32

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Solution

The fourth proportional to 950,888.16, 1,425,807.36 and 390,316.32 is: 585,259.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    950,888.16 : 1,425,807.36 = 390,316.32 : x
  2. Step 2: Convert to fraction form
    950,888.16/1,425,807.36 = 390,316.32/x
  3. Step 3: Cross multiply
    950,888.16x = 1,425,807.36 × 390,316.32
  4. Step 4: Simplify right side
    950,888.16x = 556,515,881,784.12
  5. Step 5: Solve for x
    x = 556,515,881,784.12/950,888.16
  6. Step 6: Final answer
    x = 585,259.03

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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.