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Finding the Fourth Proportional to 515,235.06, 710,779.46 and 343,232.91

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Solution

The fourth proportional to 515,235.06, 710,779.46 and 343,232.91 is: 473,498.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,235.06 : 710,779.46 = 343,232.91 : x
  2. Step 2: Convert to fraction form
    515,235.06/710,779.46 = 343,232.91/x
  3. Step 3: Cross multiply
    515,235.06x = 710,779.46 × 343,232.91
  4. Step 4: Simplify right side
    515,235.06x = 243,962,900,707.86
  5. Step 5: Solve for x
    x = 243,962,900,707.86/515,235.06
  6. Step 6: Final answer
    x = 473,498.25

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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.