Home / 663,444.11-915,749.80-430,864.76

Finding the Fourth Proportional to 663,444.11, 915,749.80 and 430,864.76

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Solution

The fourth proportional to 663,444.11, 915,749.80 and 430,864.76 is: 594,721.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,444.11 : 915,749.80 = 430,864.76 : x
  2. Step 2: Convert to fraction form
    663,444.11/915,749.80 = 430,864.76/x
  3. Step 3: Cross multiply
    663,444.11x = 915,749.80 × 430,864.76
  4. Step 4: Simplify right side
    663,444.11x = 394,564,319,009.26
  5. Step 5: Solve for x
    x = 394,564,319,009.26/663,444.11
  6. Step 6: Final answer
    x = 594,721.26

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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.