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Finding the Fourth Proportional to 459,166.54, 688,800.05 and 155,779.76

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Solution

The fourth proportional to 459,166.54, 688,800.05 and 155,779.76 is: 233,686.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,166.54 : 688,800.05 = 155,779.76 : x
  2. Step 2: Convert to fraction form
    459,166.54/688,800.05 = 155,779.76/x
  3. Step 3: Cross multiply
    459,166.54x = 688,800.05 × 155,779.76
  4. Step 4: Simplify right side
    459,166.54x = 107,301,106,476.99
  5. Step 5: Solve for x
    x = 107,301,106,476.99/459,166.54
  6. Step 6: Final answer
    x = 233,686.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.