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Finding the Fourth Proportional to 530,706.10, 732,260.17 and 315,804.19

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Solution

The fourth proportional to 530,706.10, 732,260.17 and 315,804.19 is: 435,741.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,706.10 : 732,260.17 = 315,804.19 : x
  2. Step 2: Convert to fraction form
    530,706.10/732,260.17 = 315,804.19/x
  3. Step 3: Cross multiply
    530,706.10x = 732,260.17 × 315,804.19
  4. Step 4: Simplify right side
    530,706.10x = 231,250,829,856.11
  5. Step 5: Solve for x
    x = 231,250,829,856.11/530,706.10
  6. Step 6: Final answer
    x = 435,741.80

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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.