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Finding the Fourth Proportional to 633,410.76, 874,123.89 and 357,746.52

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Solution

The fourth proportional to 633,410.76, 874,123.89 and 357,746.52 is: 493,699.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,410.76 : 874,123.89 = 357,746.52 : x
  2. Step 2: Convert to fraction form
    633,410.76/874,123.89 = 357,746.52/x
  3. Step 3: Cross multiply
    633,410.76x = 874,123.89 × 357,746.52
  4. Step 4: Simplify right side
    633,410.76x = 312,714,779,696.36
  5. Step 5: Solve for x
    x = 312,714,779,696.36/633,410.76
  6. Step 6: Final answer
    x = 493,699.82

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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.