Home / 621,973.10-858,587.70-418,142.24

Finding the Fourth Proportional to 621,973.10, 858,587.70 and 418,142.24

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Solution

The fourth proportional to 621,973.10, 858,587.70 and 418,142.24 is: 577,214.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,973.10 : 858,587.70 = 418,142.24 : x
  2. Step 2: Convert to fraction form
    621,973.10/858,587.70 = 418,142.24/x
  3. Step 3: Cross multiply
    621,973.10x = 858,587.70 × 418,142.24
  4. Step 4: Simplify right side
    621,973.10x = 359,011,779,821.51
  5. Step 5: Solve for x
    x = 359,011,779,821.51/621,973.10
  6. Step 6: Final answer
    x = 577,214.32

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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.