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Finding the Fourth Proportional to 488,071.59, 671,505.98 and 430,460.07

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Solution

The fourth proportional to 488,071.59, 671,505.98 and 430,460.07 is: 592,242.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,071.59 : 671,505.98 = 430,460.07 : x
  2. Step 2: Convert to fraction form
    488,071.59/671,505.98 = 430,460.07/x
  3. Step 3: Cross multiply
    488,071.59x = 671,505.98 × 430,460.07
  4. Step 4: Simplify right side
    488,071.59x = 289,056,509,003.92
  5. Step 5: Solve for x
    x = 289,056,509,003.92/488,071.59
  6. Step 6: Final answer
    x = 592,242.03

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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.