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Finding the Fourth Proportional to 551,407.60, 827,111.40 and 530,412.40

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Solution

The fourth proportional to 551,407.60, 827,111.40 and 530,412.40 is: 795,618.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,407.60 : 827,111.40 = 530,412.40 : x
  2. Step 2: Convert to fraction form
    551,407.60/827,111.40 = 530,412.40/x
  3. Step 3: Cross multiply
    551,407.60x = 827,111.40 × 530,412.40
  4. Step 4: Simplify right side
    551,407.60x = 438,710,142,741.36
  5. Step 5: Solve for x
    x = 438,710,142,741.36/551,407.60
  6. Step 6: Final answer
    x = 795,618.60

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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.