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Finding the Fourth Proportional to 417,030.48, 575,833.32 and 385,187.76

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Solution

The fourth proportional to 417,030.48, 575,833.32 and 385,187.76 is: 531,865.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,030.48 : 575,833.32 = 385,187.76 : x
  2. Step 2: Convert to fraction form
    417,030.48/575,833.32 = 385,187.76/x
  3. Step 3: Cross multiply
    417,030.48x = 575,833.32 × 385,187.76
  4. Step 4: Simplify right side
    417,030.48x = 221,803,946,664.16
  5. Step 5: Solve for x
    x = 221,803,946,664.16/417,030.48
  6. Step 6: Final answer
    x = 531,865.07

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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.