Home / 905,539.23-1,249,583.72-497,632.32

Finding the Fourth Proportional to 905,539.23, 1,249,583.72 and 497,632.32

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Solution

The fourth proportional to 905,539.23, 1,249,583.72 and 497,632.32 is: 686,699.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,539.23 : 1,249,583.72 = 497,632.32 : x
  2. Step 2: Convert to fraction form
    905,539.23/1,249,583.72 = 497,632.32/x
  3. Step 3: Cross multiply
    905,539.23x = 1,249,583.72 × 497,632.32
  4. Step 4: Simplify right side
    905,539.23x = 621,833,243,129.67
  5. Step 5: Solve for x
    x = 621,833,243,129.67/905,539.23
  6. Step 6: Final answer
    x = 686,699.40

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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.