Home / 879,590.81-1,213,827.12-497,617.59

Finding the Fourth Proportional to 879,590.81, 1,213,827.12 and 497,617.59

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Solution

The fourth proportional to 879,590.81, 1,213,827.12 and 497,617.59 is: 686,707.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,590.81 : 1,213,827.12 = 497,617.59 : x
  2. Step 2: Convert to fraction form
    879,590.81/1,213,827.12 = 497,617.59/x
  3. Step 3: Cross multiply
    879,590.81x = 1,213,827.12 × 497,617.59
  4. Step 4: Simplify right side
    879,590.81x = 604,021,730,682.89
  5. Step 5: Solve for x
    x = 604,021,730,682.89/879,590.81
  6. Step 6: Final answer
    x = 686,707.64

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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.