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Finding the Fourth Proportional to 531,064.18, 732,533.79 and 316,043.74

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Solution

The fourth proportional to 531,064.18, 732,533.79 and 316,043.74 is: 435,941.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,064.18 : 732,533.79 = 316,043.74 : x
  2. Step 2: Convert to fraction form
    531,064.18/732,533.79 = 316,043.74/x
  3. Step 3: Cross multiply
    531,064.18x = 732,533.79 × 316,043.74
  4. Step 4: Simplify right side
    531,064.18x = 231,512,718,667.98
  5. Step 5: Solve for x
    x = 231,512,718,667.98/531,064.18
  6. Step 6: Final answer
    x = 435,941.13

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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.