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Finding the Fourth Proportional to 549,703.80, 824,555.70 and 470,971.80

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Solution

The fourth proportional to 549,703.80, 824,555.70 and 470,971.80 is: 706,457.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,703.80 : 824,555.70 = 470,971.80 : x
  2. Step 2: Convert to fraction form
    549,703.80/824,555.70 = 470,971.80/x
  3. Step 3: Cross multiply
    549,703.80x = 824,555.70 × 470,971.80
  4. Step 4: Simplify right side
    549,703.80x = 388,342,482,229.26
  5. Step 5: Solve for x
    x = 388,342,482,229.26/549,703.80
  6. Step 6: Final answer
    x = 706,457.70

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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.