Home / 985,590.51-1,478,545.53-386,226.69

Finding the Fourth Proportional to 985,590.51, 1,478,545.53 and 386,226.69

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Solution

The fourth proportional to 985,590.51, 1,478,545.53 and 386,226.69 is: 579,402.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    985,590.51 : 1,478,545.53 = 386,226.69 : x
  2. Step 2: Convert to fraction form
    985,590.51/1,478,545.53 = 386,226.69/x
  3. Step 3: Cross multiply
    985,590.51x = 1,478,545.53 × 386,226.69
  4. Step 4: Simplify right side
    985,590.51x = 571,053,746,066.20
  5. Step 5: Solve for x
    x = 571,053,746,066.20/985,590.51
  6. Step 6: Final answer
    x = 579,402.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.