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Finding the Fourth Proportional to 615,055.63, 848,777.13 and 343,123.52

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Solution

The fourth proportional to 615,055.63, 848,777.13 and 343,123.52 is: 473,510.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,055.63 : 848,777.13 = 343,123.52 : x
  2. Step 2: Convert to fraction form
    615,055.63/848,777.13 = 343,123.52/x
  3. Step 3: Cross multiply
    615,055.63x = 848,777.13 × 343,123.52
  4. Step 4: Simplify right side
    615,055.63x = 291,235,397,912.81
  5. Step 5: Solve for x
    x = 291,235,397,912.81/615,055.63
  6. Step 6: Final answer
    x = 473,510.66

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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.