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Finding the Fourth Proportional to 514,555.39, 710,085.74 and 285,127.53

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Solution

The fourth proportional to 514,555.39, 710,085.74 and 285,127.53 is: 393,475.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    514,555.39 : 710,085.74 = 285,127.53 : x
  2. Step 2: Convert to fraction form
    514,555.39/710,085.74 = 285,127.53/x
  3. Step 3: Cross multiply
    514,555.39x = 710,085.74 × 285,127.53
  4. Step 4: Simplify right side
    514,555.39x = 202,464,995,262.63
  5. Step 5: Solve for x
    x = 202,464,995,262.63/514,555.39
  6. Step 6: Final answer
    x = 393,475.61

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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.