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Finding the Fourth Proportional to 611,577.10, 917,365.65 and 572,211.10

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Solution

The fourth proportional to 611,577.10, 917,365.65 and 572,211.10 is: 858,316.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,577.10 : 917,365.65 = 572,211.10 : x
  2. Step 2: Convert to fraction form
    611,577.10/917,365.65 = 572,211.10/x
  3. Step 3: Cross multiply
    611,577.10x = 917,365.65 × 572,211.10
  4. Step 4: Simplify right side
    611,577.10x = 524,926,807,688.72
  5. Step 5: Solve for x
    x = 524,926,807,688.72/611,577.10
  6. Step 6: Final answer
    x = 858,316.65

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Similar ratio
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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.